81390452

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7489}}^1$

素因数の和:7536

約数の個数: 48

約数和(自身を含む): 176164800

約数和(自身を除く): 94774348

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 38, 44, 52, 76, 143, 209, 247, 286, 418, 494, 572, 836, 988, 2717, 5434, 7489, 10868, 14978, 29956, 82379, 97357, 142291, 164758, 194714, 284582, 329516, 389428, 569164, 1070927, 1565201, 1849783, 2141854, 3130402, 3699566, 4283708, 6260804, 7399132, 20347613, 40695226, 81390452]

約数ペア:

[(1, 81390452), (2, 40695226), (4, 20347613), (11, 7399132), (13, 6260804), (19, 4283708), (22, 3699566), (26, 3130402), (38, 2141854), (44, 1849783), (52, 1565201), (76, 1070927), (143, 569164), (209, 389428), (247, 329516), (286, 284582), (418, 194714), (494, 164758), (572, 142291), (836, 97357), (988, 82379), (2717, 29956), (5434, 14978), (7489, 10868)]