20716744

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 23606456

約数列:

[1, 2, 4, 8, 17, 23, 34, 37, 46, 68, 74, 92, 136, 148, 179, 184, 296, 358, 391, 629, 716, 782, 851, 1258, 1432, 1564, 1702, 2516, 3043, 3128, 3404, 4117, 5032, 6086, 6623, 6808, 8234, 12172, 13246, 14467, 16468, 24344, 26492, 28934, 32936, 52984, 57868, 69989, 112591, 115736, 139978, 152329, 225182, 279956, 304658, 450364, 559912, 609316, 900728, 1218632, 2589593, 5179186, 10358372, 20716744]

約数ペア:

[(1, 20716744), (2, 10358372), (4, 5179186), (8, 2589593), (17, 1218632), (23, 900728), (34, 609316), (37, 559912), (46, 450364), (68, 304658), (74, 279956), (92, 225182), (136, 152329), (148, 139978), (179, 115736), (184, 112591), (296, 69989), (358, 57868), (391, 52984), (629, 32936), (716, 28934), (782, 26492), (851, 24344), (1258, 16468), (1432, 14467), (1564, 13246), (1702, 12172), (2516, 8234), (3043, 6808), (3128, 6623), (3404, 6086), (4117, 5032)]