880400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 60

約数和(自身を含む): 2214144

約数和(自身を除く): 1333744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 71, 80, 100, 124, 142, 155, 200, 248, 284, 310, 355, 400, 496, 568, 620, 710, 775, 1136, 1240, 1420, 1550, 1775, 2201, 2480, 2840, 3100, 3550, 4402, 5680, 6200, 7100, 8804, 11005, 12400, 14200, 17608, 22010, 28400, 35216, 44020, 55025, 88040, 110050, 176080, 220100, 440200, 880400]

約数ペア:

[(1, 880400), (2, 440200), (4, 220100), (5, 176080), (8, 110050), (10, 88040), (16, 55025), (20, 44020), (25, 35216), (31, 28400), (40, 22010), (50, 17608), (62, 14200), (71, 12400), (80, 11005), (100, 8804), (124, 7100), (142, 6200), (155, 5680), (200, 4402), (248, 3550), (284, 3100), (310, 2840), (355, 2480), (400, 2201), (496, 1775), (568, 1550), (620, 1420), (710, 1240), (775, 1136)]