20510910

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{4651}}^1$

素因数の和:4678

約数の個数: 72

約数和(自身を含む): 62048376

約数和(自身を除く): 41537466

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 4651, 9302, 13953, 23255, 27906, 32557, 41859, 46510, 65114, 69765, 83718, 97671, 139530, 162785, 195342, 209295, 227899, 293013, 325570, 418590, 455798, 488355, 586026, 683697, 976710, 1139495, 1367394, 1465065, 2051091, 2278990, 2930130, 3418485, 4102182, 6836970, 10255455, 20510910]

約数ペア:

[(1, 20510910), (2, 10255455), (3, 6836970), (5, 4102182), (6, 3418485), (7, 2930130), (9, 2278990), (10, 2051091), (14, 1465065), (15, 1367394), (18, 1139495), (21, 976710), (30, 683697), (35, 586026), (42, 488355), (45, 455798), (49, 418590), (63, 325570), (70, 293013), (90, 227899), (98, 209295), (105, 195342), (126, 162785), (147, 139530), (210, 97671), (245, 83718), (294, 69765), (315, 65114), (441, 46510), (490, 41859), (630, 32557), (735, 27906), (882, 23255), (1470, 13953), (2205, 9302), (4410, 4651)]