397990400

素因数分解:

$2^9\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:135

約数の個数: 240

約数和(自身を含む): 1096001280

約数和(自身を除く): 698010880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 31, 32, 34, 40, 50, 59, 62, 64, 68, 80, 85, 100, 118, 124, 128, 136, 155, 160, 170, 200, 236, 248, 256, 272, 295, 310, 320, 340, 400, 425, 472, 496, 512, 527, 544, 590, 620, 640, 680, 775, 800, 850, 944, 992, 1003, 1054, 1088, 1180, 1240, 1280, 1360, 1475, 1550, 1600, 1700, 1829, 1888, 1984, 2006, 2108, 2176, 2360, 2480, 2560, 2635, 2720, 2950, 3100, 3200, 3400, 3658, 3776, 3968, 4012, 4216, 4352, 4720, 4960, 5015, 5270, 5440, 5900, 6200, 6400, 6800, 7316, 7552, 7936, 8024, 8432, 8704, 9145, 9440, 9920, 10030, 10540, 10880, 11800, 12400, 12800, 13175, 13600, 14632, 15104, 15872, 16048, 16864, 18290, 18880, 19840, 20060, 21080, 21760, 23600, 24800, 25075, 26350, 27200, 29264, 30208, 31093, 32096, 33728, 36580, 37760, 39680, 40120, 42160, 43520, 45725, 47200, 49600, 50150, 52700, 54400, 58528, 62186, 64192, 67456, 73160, 75520, 79360, 80240, 84320, 91450, 94400, 99200, 100300, 105400, 108800, 117056, 124372, 128384, 134912, 146320, 151040, 155465, 160480, 168640, 182900, 188800, 198400, 200600, 210800, 217600, 234112, 248744, 256768, 269824, 292640, 310930, 320960, 337280, 365800, 377600, 396800, 401200, 421600, 468224, 497488, 513536, 585280, 621860, 641920, 674560, 731600, 755200, 777325, 802400, 843200, 936448, 994976, 1170560, 1243720, 1283840, 1349120, 1463200, 1554650, 1604800, 1686400, 1989952, 2341120, 2487440, 2567680, 2926400, 3109300, 3209600, 3372800, 3979904, 4682240, 4974880, 5852800, 6218600, 6419200, 6745600, 7959808, 9949760, 11705600, 12437200, 12838400, 15919616, 19899520, 23411200, 24874400, 39799040, 49748800, 79598080, 99497600, 198995200, 397990400]

約数ペア:

[(1, 397990400), (2, 198995200), (4, 99497600), (5, 79598080), (8, 49748800), (10, 39799040), (16, 24874400), (17, 23411200), (20, 19899520), (25, 15919616), (31, 12838400), (32, 12437200), (34, 11705600), (40, 9949760), (50, 7959808), (59, 6745600), (62, 6419200), (64, 6218600), (68, 5852800), (80, 4974880), (85, 4682240), (100, 3979904), (118, 3372800), (124, 3209600), (128, 3109300), (136, 2926400), (155, 2567680), (160, 2487440), (170, 2341120), (200, 1989952), (236, 1686400), (248, 1604800), (256, 1554650), (272, 1463200), (295, 1349120), (310, 1283840), (320, 1243720), (340, 1170560), (400, 994976), (425, 936448), (472, 843200), (496, 802400), (512, 777325), (527, 755200), (544, 731600), (590, 674560), (620, 641920), (640, 621860), (680, 585280), (775, 513536), (800, 497488), (850, 468224), (944, 421600), (992, 401200), (1003, 396800), (1054, 377600), (1088, 365800), (1180, 337280), (1240, 320960), (1280, 310930), (1360, 292640), (1475, 269824), (1550, 256768), (1600, 248744), (1700, 234112), (1829, 217600), (1888, 210800), (1984, 200600), (2006, 198400), (2108, 188800), (2176, 182900), (2360, 168640), (2480, 160480), (2560, 155465), (2635, 151040), (2720, 146320), (2950, 134912), (3100, 128384), (3200, 124372), (3400, 117056), (3658, 108800), (3776, 105400), (3968, 100300), (4012, 99200), (4216, 94400), (4352, 91450), (4720, 84320), (4960, 80240), (5015, 79360), (5270, 75520), (5440, 73160), (5900, 67456), (6200, 64192), (6400, 62186), (6800, 58528), (7316, 54400), (7552, 52700), (7936, 50150), (8024, 49600), (8432, 47200), (8704, 45725), (9145, 43520), (9440, 42160), (9920, 40120), (10030, 39680), (10540, 37760), (10880, 36580), (11800, 33728), (12400, 32096), (12800, 31093), (13175, 30208), (13600, 29264), (14632, 27200), (15104, 26350), (15872, 25075), (16048, 24800), (16864, 23600), (18290, 21760), (18880, 21080), (19840, 20060)]