218484280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{25171}}^1$

素因数の和:25220

約数の個数: 64

約数和(自身を含む): 579962880

約数和(自身を除く): 361478600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 25171, 50342, 100684, 125855, 176197, 201368, 251710, 352394, 503420, 704788, 780301, 880985, 1006840, 1409576, 1560602, 1761970, 3121204, 3523940, 3901505, 5462107, 6242408, 7047880, 7803010, 10924214, 15606020, 21848428, 27310535, 31212040, 43696856, 54621070, 109242140, 218484280]

約数ペア:

[(1, 218484280), (2, 109242140), (4, 54621070), (5, 43696856), (7, 31212040), (8, 27310535), (10, 21848428), (14, 15606020), (20, 10924214), (28, 7803010), (31, 7047880), (35, 6242408), (40, 5462107), (56, 3901505), (62, 3523940), (70, 3121204), (124, 1761970), (140, 1560602), (155, 1409576), (217, 1006840), (248, 880985), (280, 780301), (310, 704788), (434, 503420), (620, 352394), (868, 251710), (1085, 201368), (1240, 176197), (1736, 125855), (2170, 100684), (4340, 50342), (8680, 25171)]