220100

素因数分解:

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

素因数の和:116

約数の個数: 36

約数和(自身を含む): 499968

約数和(自身を除く): 279868

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 71, 100, 124, 142, 155, 284, 310, 355, 620, 710, 775, 1420, 1550, 1775, 2201, 3100, 3550, 4402, 7100, 8804, 11005, 22010, 44020, 55025, 110050, 220100]

約数ペア:

[(1, 220100), (2, 110050), (4, 55025), (5, 44020), (10, 22010), (20, 11005), (25, 8804), (31, 7100), (50, 4402), (62, 3550), (71, 3100), (100, 2201), (124, 1775), (142, 1550), (155, 1420), (284, 775), (310, 710), (355, 620)]