28763735

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 47228832

約数和(自身を除く): 18465097

約数列:

[1, 5, 7, 11, 13, 35, 49, 55, 65, 77, 91, 143, 245, 385, 455, 539, 637, 715, 821, 1001, 2695, 3185, 4105, 5005, 5747, 7007, 9031, 10673, 28735, 35035, 40229, 45155, 53365, 63217, 74711, 117403, 201145, 316085, 373555, 442519, 522977, 587015, 821821, 2212595, 2614885, 4109105, 5752747, 28763735]

約数ペア:

[(1, 28763735), (5, 5752747), (7, 4109105), (11, 2614885), (13, 2212595), (35, 821821), (49, 587015), (55, 522977), (65, 442519), (77, 373555), (91, 316085), (143, 201145), (245, 117403), (385, 74711), (455, 63217), (539, 53365), (637, 45155), (715, 40229), (821, 35035), (1001, 28735), (2695, 10673), (3185, 9031), (4105, 7007), (5005, 5747)]