78241780

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1\times {\mathrm{331}}^1$

素因数の和:616

約数の個数: 48

約数和(自身を含む): 168666624

約数和(自身を除く): 90424844

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 223, 265, 331, 446, 530, 662, 892, 1060, 1115, 1324, 1655, 2230, 3310, 4460, 6620, 11819, 17543, 23638, 35086, 47276, 59095, 70172, 73813, 87715, 118190, 147626, 175430, 236380, 295252, 350860, 369065, 738130, 1476260, 3912089, 7824178, 15648356, 19560445, 39120890, 78241780]

約数ペア:

[(1, 78241780), (2, 39120890), (4, 19560445), (5, 15648356), (10, 7824178), (20, 3912089), (53, 1476260), (106, 738130), (212, 369065), (223, 350860), (265, 295252), (331, 236380), (446, 175430), (530, 147626), (662, 118190), (892, 87715), (1060, 73813), (1115, 70172), (1324, 59095), (1655, 47276), (2230, 35086), (3310, 23638), (4460, 17543), (6620, 11819)]