20275750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 42389568

約数和(自身を除く): 22113818

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 73, 101, 110, 125, 146, 202, 250, 275, 365, 505, 550, 730, 803, 1010, 1111, 1375, 1606, 1825, 2222, 2525, 2750, 3650, 4015, 5050, 5555, 7373, 8030, 9125, 11110, 12625, 14746, 18250, 20075, 25250, 27775, 36865, 40150, 55550, 73730, 81103, 100375, 138875, 162206, 184325, 200750, 277750, 368650, 405515, 811030, 921625, 1843250, 2027575, 4055150, 10137875, 20275750]

約数ペア:

[(1, 20275750), (2, 10137875), (5, 4055150), (10, 2027575), (11, 1843250), (22, 921625), (25, 811030), (50, 405515), (55, 368650), (73, 277750), (101, 200750), (110, 184325), (125, 162206), (146, 138875), (202, 100375), (250, 81103), (275, 73730), (365, 55550), (505, 40150), (550, 36865), (730, 27775), (803, 25250), (1010, 20075), (1111, 18250), (1375, 14746), (1606, 12625), (1825, 11110), (2222, 9125), (2525, 8030), (2750, 7373), (3650, 5555), (4015, 5050)]