20465460

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{4211}}^1$

素因数の和:4235

約数の個数: 72

約数和(自身を含む): 64393056

約数和(自身を除く): 43927596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4211, 4860, 8422, 12633, 16844, 21055, 25266, 37899, 42110, 50532, 63165, 75798, 84220, 113697, 126330, 151596, 189495, 227394, 252660, 341091, 378990, 454788, 568485, 682182, 757980, 1023273, 1136970, 1364364, 1705455, 2046546, 2273940, 3410910, 4093092, 5116365, 6821820, 10232730, 20465460]

約数ペア:

[(1, 20465460), (2, 10232730), (3, 6821820), (4, 5116365), (5, 4093092), (6, 3410910), (9, 2273940), (10, 2046546), (12, 1705455), (15, 1364364), (18, 1136970), (20, 1023273), (27, 757980), (30, 682182), (36, 568485), (45, 454788), (54, 378990), (60, 341091), (81, 252660), (90, 227394), (108, 189495), (135, 151596), (162, 126330), (180, 113697), (243, 84220), (270, 75798), (324, 63165), (405, 50532), (486, 42110), (540, 37899), (810, 25266), (972, 21055), (1215, 16844), (1620, 12633), (2430, 8422), (4211, 4860)]