1555148920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1433}}^1\times {\mathrm{2087}}^1$

素因数の和:3544

約数の個数: 64

約数和(自身を含む): 3772681920

約数和(自身を除く): 2217533000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1433, 2087, 2866, 4174, 5732, 7165, 8348, 10435, 11464, 14330, 16696, 18629, 20870, 27131, 28660, 37258, 41740, 54262, 57320, 74516, 83480, 93145, 108524, 135655, 149032, 186290, 217048, 271310, 372580, 542620, 745160, 1085240, 2990671, 5981342, 11962684, 14953355, 23925368, 29906710, 38878723, 59813420, 77757446, 119626840, 155514892, 194393615, 311029784, 388787230, 777574460, 1555148920]

約数ペア:

[(1, 1555148920), (2, 777574460), (4, 388787230), (5, 311029784), (8, 194393615), (10, 155514892), (13, 119626840), (20, 77757446), (26, 59813420), (40, 38878723), (52, 29906710), (65, 23925368), (104, 14953355), (130, 11962684), (260, 5981342), (520, 2990671), (1433, 1085240), (2087, 745160), (2866, 542620), (4174, 372580), (5732, 271310), (7165, 217048), (8348, 186290), (10435, 149032), (11464, 135655), (14330, 108524), (16696, 93145), (18629, 83480), (20870, 74516), (27131, 57320), (28660, 54262), (37258, 41740)]