20189045525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{461}}^1\times {\mathrm{977}}^1$

素因数の和:1622

約数の個数: 48

約数和(自身を含む): 27565610688

約数和(自身を除く): 7376565163

約数列:

[1, 5, 11, 25, 55, 163, 275, 461, 815, 977, 1793, 2305, 4075, 4885, 5071, 8965, 10747, 11525, 24425, 25355, 44825, 53735, 75143, 126775, 159251, 268675, 375715, 450397, 796255, 826573, 1751761, 1878575, 2251985, 3981275, 4132865, 4954367, 8758805, 11259925, 20664325, 24771835, 43794025, 73414711, 123859175, 367073555, 807561821, 1835367775, 4037809105, 20189045525]

約数ペア:

[(1, 20189045525), (5, 4037809105), (11, 1835367775), (25, 807561821), (55, 367073555), (163, 123859175), (275, 73414711), (461, 43794025), (815, 24771835), (977, 20664325), (1793, 11259925), (2305, 8758805), (4075, 4954367), (4885, 4132865), (5071, 3981275), (8965, 2251985), (10747, 1878575), (11525, 1751761), (24425, 826573), (25355, 796255), (44825, 450397), (53735, 375715), (75143, 268675), (126775, 159251)]