81109960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{673}}^1$

素因数の和:838

約数の個数: 64

約数和(自身を含む): 192170880

約数和(自身を除く): 111060920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 131, 184, 230, 262, 460, 524, 655, 673, 920, 1048, 1310, 1346, 2620, 2692, 3013, 3365, 5240, 5384, 6026, 6730, 12052, 13460, 15065, 15479, 24104, 26920, 30130, 30958, 60260, 61916, 77395, 88163, 120520, 123832, 154790, 176326, 309580, 352652, 440815, 619160, 705304, 881630, 1763260, 2027749, 3526520, 4055498, 8110996, 10138745, 16221992, 20277490, 40554980, 81109960]

約数ペア:

[(1, 81109960), (2, 40554980), (4, 20277490), (5, 16221992), (8, 10138745), (10, 8110996), (20, 4055498), (23, 3526520), (40, 2027749), (46, 1763260), (92, 881630), (115, 705304), (131, 619160), (184, 440815), (230, 352652), (262, 309580), (460, 176326), (524, 154790), (655, 123832), (673, 120520), (920, 88163), (1048, 77395), (1310, 61916), (1346, 60260), (2620, 30958), (2692, 30130), (3013, 26920), (3365, 24104), (5240, 15479), (5384, 15065), (6026, 13460), (6730, 12052)]