49200980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 105779520

約数和(自身を除く): 56578540

約数列:

[1, 2, 4, 5, 10, 20, 89, 131, 178, 211, 262, 356, 422, 445, 524, 655, 844, 890, 1055, 1310, 1780, 2110, 2620, 4220, 11659, 18779, 23318, 27641, 37558, 46636, 55282, 58295, 75116, 93895, 110564, 116590, 138205, 187790, 233180, 276410, 375580, 552820, 2460049, 4920098, 9840196, 12300245, 24600490, 49200980]

約数ペア:

[(1, 49200980), (2, 24600490), (4, 12300245), (5, 9840196), (10, 4920098), (20, 2460049), (89, 552820), (131, 375580), (178, 276410), (211, 233180), (262, 187790), (356, 138205), (422, 116590), (445, 110564), (524, 93895), (655, 75116), (844, 58295), (890, 55282), (1055, 46636), (1310, 37558), (1780, 27641), (2110, 23318), (2620, 18779), (4220, 11659)]