40213980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1423}}^1$

素因数の和:1595

約数の個数: 72

約数和(自身を含む): 122845632

約数和(自身を除く): 82631652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 785, 942, 1413, 1423, 1570, 1884, 2355, 2826, 2846, 3140, 4269, 4710, 5652, 5692, 7065, 7115, 8538, 9420, 12807, 14130, 14230, 17076, 21345, 25614, 28260, 28460, 42690, 51228, 64035, 85380, 128070, 223411, 256140, 446822, 670233, 893644, 1117055, 1340466, 2010699, 2234110, 2680932, 3351165, 4021398, 4468220, 6702330, 8042796, 10053495, 13404660, 20106990, 40213980]

約数ペア:

[(1, 40213980), (2, 20106990), (3, 13404660), (4, 10053495), (5, 8042796), (6, 6702330), (9, 4468220), (10, 4021398), (12, 3351165), (15, 2680932), (18, 2234110), (20, 2010699), (30, 1340466), (36, 1117055), (45, 893644), (60, 670233), (90, 446822), (157, 256140), (180, 223411), (314, 128070), (471, 85380), (628, 64035), (785, 51228), (942, 42690), (1413, 28460), (1423, 28260), (1570, 25614), (1884, 21345), (2355, 17076), (2826, 14230), (2846, 14130), (3140, 12807), (4269, 9420), (4710, 8538), (5652, 7115), (5692, 7065)]