2017821975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{397}}^1\times {\mathrm{401}}^1$

素因数の和:837

約数の個数: 72

約数和(自身を含む): 3630629232

約数和(自身を除く): 1612807257

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 169, 195, 325, 397, 401, 507, 845, 975, 1191, 1203, 1985, 2005, 2535, 4225, 5161, 5213, 5955, 6015, 9925, 10025, 12675, 15483, 15639, 25805, 26065, 29775, 30075, 67093, 67769, 77415, 78195, 129025, 130325, 159197, 201279, 203307, 335465, 338845, 387075, 390975, 477591, 795985, 1006395, 1016535, 1677325, 1694225, 2069561, 2387955, 3979925, 5031975, 5082675, 6208683, 10347805, 11939775, 26904293, 31043415, 51739025, 80712879, 134521465, 155217075, 403564395, 672607325, 2017821975]

約数ペア:

[(1, 2017821975), (3, 672607325), (5, 403564395), (13, 155217075), (15, 134521465), (25, 80712879), (39, 51739025), (65, 31043415), (75, 26904293), (169, 11939775), (195, 10347805), (325, 6208683), (397, 5082675), (401, 5031975), (507, 3979925), (845, 2387955), (975, 2069561), (1191, 1694225), (1203, 1677325), (1985, 1016535), (2005, 1006395), (2535, 795985), (4225, 477591), (5161, 390975), (5213, 387075), (5955, 338845), (6015, 335465), (9925, 203307), (10025, 201279), (12675, 159197), (15483, 130325), (15639, 129025), (25805, 78195), (26065, 77415), (29775, 67769), (30075, 67093)]