71795200

素因数分解:

$2^9\times 5^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:178

約数の個数: 120

約数和(自身を含む): 182666880

約数和(自身を除く): 110871680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 79, 80, 100, 128, 142, 158, 160, 200, 256, 284, 316, 320, 355, 395, 400, 512, 568, 632, 640, 710, 790, 800, 1136, 1264, 1280, 1420, 1580, 1600, 1775, 1975, 2272, 2528, 2560, 2840, 3160, 3200, 3550, 3950, 4544, 5056, 5609, 5680, 6320, 6400, 7100, 7900, 9088, 10112, 11218, 11360, 12640, 12800, 14200, 15800, 18176, 20224, 22436, 22720, 25280, 28045, 28400, 31600, 36352, 40448, 44872, 45440, 50560, 56090, 56800, 63200, 89744, 90880, 101120, 112180, 113600, 126400, 140225, 179488, 181760, 202240, 224360, 227200, 252800, 280450, 358976, 448720, 454400, 505600, 560900, 717952, 897440, 908800, 1011200, 1121800, 1435904, 1794880, 2243600, 2871808, 3589760, 4487200, 7179520, 8974400, 14359040, 17948800, 35897600, 71795200]

約数ペア:

[(1, 71795200), (2, 35897600), (4, 17948800), (5, 14359040), (8, 8974400), (10, 7179520), (16, 4487200), (20, 3589760), (25, 2871808), (32, 2243600), (40, 1794880), (50, 1435904), (64, 1121800), (71, 1011200), (79, 908800), (80, 897440), (100, 717952), (128, 560900), (142, 505600), (158, 454400), (160, 448720), (200, 358976), (256, 280450), (284, 252800), (316, 227200), (320, 224360), (355, 202240), (395, 181760), (400, 179488), (512, 140225), (568, 126400), (632, 113600), (640, 112180), (710, 101120), (790, 90880), (800, 89744), (1136, 63200), (1264, 56800), (1280, 56090), (1420, 50560), (1580, 45440), (1600, 44872), (1775, 40448), (1975, 36352), (2272, 31600), (2528, 28400), (2560, 28045), (2840, 25280), (3160, 22720), (3200, 22436), (3550, 20224), (3950, 18176), (4544, 15800), (5056, 14200), (5609, 12800), (5680, 12640), (6320, 11360), (6400, 11218), (7100, 10112), (7900, 9088)]