1900771880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1901}}^1\times {\mathrm{3571}}^1$

素因数の和:5490

約数の個数: 64

約数和(自身を含む): 4891639680

約数和(自身を除く): 2990867800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1901, 3571, 3802, 7142, 7604, 9505, 13307, 14284, 15208, 17855, 19010, 24997, 26614, 28568, 35710, 38020, 49994, 53228, 66535, 71420, 76040, 99988, 106456, 124985, 133070, 142840, 199976, 249970, 266140, 499940, 532280, 999880, 6788471, 13576942, 27153884, 33942355, 47519297, 54307768, 67884710, 95038594, 135769420, 190077188, 237596485, 271538840, 380154376, 475192970, 950385940, 1900771880]

約数ペア:

[(1, 1900771880), (2, 950385940), (4, 475192970), (5, 380154376), (7, 271538840), (8, 237596485), (10, 190077188), (14, 135769420), (20, 95038594), (28, 67884710), (35, 54307768), (40, 47519297), (56, 33942355), (70, 27153884), (140, 13576942), (280, 6788471), (1901, 999880), (3571, 532280), (3802, 499940), (7142, 266140), (7604, 249970), (9505, 199976), (13307, 142840), (14284, 133070), (15208, 124985), (17855, 106456), (19010, 99988), (24997, 76040), (26614, 71420), (28568, 66535), (35710, 53228), (38020, 49994)]