72217600

素因数分解:

$2^{10}\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:81

約数の個数: 264

約数和(自身を含む): 227429888

約数和(自身を除く): 155212288

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 31, 32, 35, 40, 50, 52, 56, 62, 64, 65, 70, 80, 91, 100, 104, 112, 124, 128, 130, 140, 155, 160, 175, 182, 200, 208, 217, 224, 248, 256, 260, 280, 310, 320, 325, 350, 364, 400, 403, 416, 434, 448, 455, 496, 512, 520, 560, 620, 640, 650, 700, 728, 775, 800, 806, 832, 868, 896, 910, 992, 1024, 1040, 1085, 1120, 1240, 1280, 1300, 1400, 1456, 1550, 1600, 1612, 1664, 1736, 1792, 1820, 1984, 2015, 2080, 2170, 2240, 2275, 2480, 2560, 2600, 2800, 2821, 2912, 3100, 3200, 3224, 3328, 3472, 3584, 3640, 3968, 4030, 4160, 4340, 4480, 4550, 4960, 5120, 5200, 5425, 5600, 5642, 5824, 6200, 6400, 6448, 6656, 6944, 7168, 7280, 7936, 8060, 8320, 8680, 8960, 9100, 9920, 10075, 10400, 10850, 11200, 11284, 11648, 12400, 12800, 12896, 13312, 13888, 14105, 14560, 15872, 16120, 16640, 17360, 17920, 18200, 19840, 20150, 20800, 21700, 22400, 22568, 23296, 24800, 25600, 25792, 27776, 28210, 29120, 31744, 32240, 33280, 34720, 35840, 36400, 39680, 40300, 41600, 43400, 44800, 45136, 46592, 49600, 51584, 55552, 56420, 58240, 64480, 66560, 69440, 70525, 72800, 79360, 80600, 83200, 86800, 89600, 90272, 93184, 99200, 103168, 111104, 112840, 116480, 128960, 138880, 141050, 145600, 158720, 161200, 166400, 173600, 179200, 180544, 198400, 206336, 222208, 225680, 232960, 257920, 277760, 282100, 291200, 322400, 332800, 347200, 361088, 396800, 412672, 451360, 465920, 515840, 555520, 564200, 582400, 644800, 694400, 722176, 793600, 902720, 1031680, 1111040, 1128400, 1164800, 1289600, 1388800, 1444352, 1805440, 2063360, 2256800, 2329600, 2579200, 2777600, 2888704, 3610880, 4513600, 5158400, 5555200, 7221760, 9027200, 10316800, 14443520, 18054400, 36108800, 72217600]

約数ペア:

[(1, 72217600), (2, 36108800), (4, 18054400), (5, 14443520), (7, 10316800), (8, 9027200), (10, 7221760), (13, 5555200), (14, 5158400), (16, 4513600), (20, 3610880), (25, 2888704), (26, 2777600), (28, 2579200), (31, 2329600), (32, 2256800), (35, 2063360), (40, 1805440), (50, 1444352), (52, 1388800), (56, 1289600), (62, 1164800), (64, 1128400), (65, 1111040), (70, 1031680), (80, 902720), (91, 793600), (100, 722176), (104, 694400), (112, 644800), (124, 582400), (128, 564200), (130, 555520), (140, 515840), (155, 465920), (160, 451360), (175, 412672), (182, 396800), (200, 361088), (208, 347200), (217, 332800), (224, 322400), (248, 291200), (256, 282100), (260, 277760), (280, 257920), (310, 232960), (320, 225680), (325, 222208), (350, 206336), (364, 198400), (400, 180544), (403, 179200), (416, 173600), (434, 166400), (448, 161200), (455, 158720), (496, 145600), (512, 141050), (520, 138880), (560, 128960), (620, 116480), (640, 112840), (650, 111104), (700, 103168), (728, 99200), (775, 93184), (800, 90272), (806, 89600), (832, 86800), (868, 83200), (896, 80600), (910, 79360), (992, 72800), (1024, 70525), (1040, 69440), (1085, 66560), (1120, 64480), (1240, 58240), (1280, 56420), (1300, 55552), (1400, 51584), (1456, 49600), (1550, 46592), (1600, 45136), (1612, 44800), (1664, 43400), (1736, 41600), (1792, 40300), (1820, 39680), (1984, 36400), (2015, 35840), (2080, 34720), (2170, 33280), (2240, 32240), (2275, 31744), (2480, 29120), (2560, 28210), (2600, 27776), (2800, 25792), (2821, 25600), (2912, 24800), (3100, 23296), (3200, 22568), (3224, 22400), (3328, 21700), (3472, 20800), (3584, 20150), (3640, 19840), (3968, 18200), (4030, 17920), (4160, 17360), (4340, 16640), (4480, 16120), (4550, 15872), (4960, 14560), (5120, 14105), (5200, 13888), (5425, 13312), (5600, 12896), (5642, 12800), (5824, 12400), (6200, 11648), (6400, 11284), (6448, 11200), (6656, 10850), (6944, 10400), (7168, 10075), (7280, 9920), (7936, 9100), (8060, 8960), (8320, 8680)]