80358980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16267}}^1$

素因数の和:16308

約数の個数: 48

約数和(自身を含む): 191311680

約数和(自身を除く): 110952700

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 16267, 32534, 65068, 81335, 162670, 211471, 309073, 325340, 422942, 618146, 845884, 1057355, 1236292, 1545365, 2114710, 3090730, 4017949, 4229420, 6181460, 8035898, 16071796, 20089745, 40179490, 80358980]

約数ペア:

[(1, 80358980), (2, 40179490), (4, 20089745), (5, 16071796), (10, 8035898), (13, 6181460), (19, 4229420), (20, 4017949), (26, 3090730), (38, 2114710), (52, 1545365), (65, 1236292), (76, 1057355), (95, 845884), (130, 618146), (190, 422942), (247, 325340), (260, 309073), (380, 211471), (494, 162670), (988, 81335), (1235, 65068), (2470, 32534), (4940, 16267)]