1881907510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{239}}^1\times {\mathrm{571}}^1$

素因数の和:1021

約数の個数: 64

約数和(自身を含む): 3914127360

約数和(自身を除く): 2032219850

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 197, 239, 394, 478, 571, 985, 1142, 1195, 1379, 1673, 1970, 2390, 2758, 2855, 3346, 3997, 5710, 6895, 7994, 8365, 13790, 16730, 19985, 39970, 47083, 94166, 112487, 136469, 224974, 235415, 272938, 329581, 470830, 562435, 659162, 682345, 787409, 955283, 1124870, 1364690, 1574818, 1647905, 1910566, 3295810, 3937045, 4776415, 7874090, 9552830, 26884393, 53768786, 134421965, 188190751, 268843930, 376381502, 940953755, 1881907510]

約数ペア:

[(1, 1881907510), (2, 940953755), (5, 376381502), (7, 268843930), (10, 188190751), (14, 134421965), (35, 53768786), (70, 26884393), (197, 9552830), (239, 7874090), (394, 4776415), (478, 3937045), (571, 3295810), (985, 1910566), (1142, 1647905), (1195, 1574818), (1379, 1364690), (1673, 1124870), (1970, 955283), (2390, 787409), (2758, 682345), (2855, 659162), (3346, 562435), (3997, 470830), (5710, 329581), (6895, 272938), (7994, 235415), (8365, 224974), (13790, 136469), (16730, 112487), (19985, 94166), (39970, 47083)]