890639680

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{719}}^1$

素因数の和:829

約数の個数: 168

約数和(自身を含む): 2501798400

約数和(自身を除く): 1611158720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 79, 80, 98, 112, 140, 158, 160, 196, 224, 245, 280, 316, 320, 392, 395, 448, 490, 553, 560, 632, 719, 784, 790, 980, 1106, 1120, 1264, 1438, 1568, 1580, 1960, 2212, 2240, 2528, 2765, 2876, 3136, 3160, 3595, 3871, 3920, 4424, 5033, 5056, 5530, 5752, 6320, 7190, 7742, 7840, 8848, 10066, 11060, 11504, 12640, 14380, 15484, 15680, 17696, 19355, 20132, 22120, 23008, 25165, 25280, 28760, 30968, 35231, 35392, 38710, 40264, 44240, 46016, 50330, 56801, 57520, 61936, 70462, 77420, 80528, 88480, 100660, 113602, 115040, 123872, 140924, 154840, 161056, 176155, 176960, 201320, 227204, 230080, 247744, 281848, 284005, 309680, 322112, 352310, 397607, 402640, 454408, 563696, 568010, 619360, 704620, 795214, 805280, 908816, 1127392, 1136020, 1238720, 1409240, 1590428, 1610560, 1817632, 1988035, 2254784, 2272040, 2783249, 2818480, 3180856, 3635264, 3976070, 4544080, 5566498, 5636960, 6361712, 7952140, 9088160, 11132996, 11273920, 12723424, 13916245, 15904280, 18176320, 22265992, 25446848, 27832490, 31808560, 44531984, 55664980, 63617120, 89063968, 111329960, 127234240, 178127936, 222659920, 445319840, 890639680]

約数ペア:

[(1, 890639680), (2, 445319840), (4, 222659920), (5, 178127936), (7, 127234240), (8, 111329960), (10, 89063968), (14, 63617120), (16, 55664980), (20, 44531984), (28, 31808560), (32, 27832490), (35, 25446848), (40, 22265992), (49, 18176320), (56, 15904280), (64, 13916245), (70, 12723424), (79, 11273920), (80, 11132996), (98, 9088160), (112, 7952140), (140, 6361712), (158, 5636960), (160, 5566498), (196, 4544080), (224, 3976070), (245, 3635264), (280, 3180856), (316, 2818480), (320, 2783249), (392, 2272040), (395, 2254784), (448, 1988035), (490, 1817632), (553, 1610560), (560, 1590428), (632, 1409240), (719, 1238720), (784, 1136020), (790, 1127392), (980, 908816), (1106, 805280), (1120, 795214), (1264, 704620), (1438, 619360), (1568, 568010), (1580, 563696), (1960, 454408), (2212, 402640), (2240, 397607), (2528, 352310), (2765, 322112), (2876, 309680), (3136, 284005), (3160, 281848), (3595, 247744), (3871, 230080), (3920, 227204), (4424, 201320), (5033, 176960), (5056, 176155), (5530, 161056), (5752, 154840), (6320, 140924), (7190, 123872), (7742, 115040), (7840, 113602), (8848, 100660), (10066, 88480), (11060, 80528), (11504, 77420), (12640, 70462), (14380, 61936), (15484, 57520), (15680, 56801), (17696, 50330), (19355, 46016), (20132, 44240), (22120, 40264), (23008, 38710), (25165, 35392), (25280, 35231), (28760, 30968)]