215984440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:365

約数の個数: 128

約数和(自身を含む): 580608000

約数和(自身を除く): 364623560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 149, 155, 167, 217, 248, 280, 298, 310, 334, 434, 596, 620, 668, 745, 835, 868, 1043, 1085, 1169, 1192, 1240, 1336, 1490, 1670, 1736, 2086, 2170, 2338, 2980, 3340, 4172, 4340, 4619, 4676, 5177, 5215, 5845, 5960, 6680, 8344, 8680, 9238, 9352, 10354, 10430, 11690, 18476, 20708, 20860, 23095, 23380, 24883, 25885, 32333, 36239, 36952, 41416, 41720, 46190, 46760, 49766, 51770, 64666, 72478, 92380, 99532, 103540, 124415, 129332, 144956, 161665, 174181, 181195, 184760, 199064, 207080, 248830, 258664, 289912, 323330, 348362, 362390, 497660, 646660, 696724, 724780, 771373, 870905, 995320, 1293320, 1393448, 1449560, 1542746, 1741810, 3085492, 3483620, 3856865, 5399611, 6170984, 6967240, 7713730, 10799222, 15427460, 21598444, 26998055, 30854920, 43196888, 53996110, 107992220, 215984440]

約数ペア:

[(1, 215984440), (2, 107992220), (4, 53996110), (5, 43196888), (7, 30854920), (8, 26998055), (10, 21598444), (14, 15427460), (20, 10799222), (28, 7713730), (31, 6967240), (35, 6170984), (40, 5399611), (56, 3856865), (62, 3483620), (70, 3085492), (124, 1741810), (140, 1542746), (149, 1449560), (155, 1393448), (167, 1293320), (217, 995320), (248, 870905), (280, 771373), (298, 724780), (310, 696724), (334, 646660), (434, 497660), (596, 362390), (620, 348362), (668, 323330), (745, 289912), (835, 258664), (868, 248830), (1043, 207080), (1085, 199064), (1169, 184760), (1192, 181195), (1240, 174181), (1336, 161665), (1490, 144956), (1670, 129332), (1736, 124415), (2086, 103540), (2170, 99532), (2338, 92380), (2980, 72478), (3340, 64666), (4172, 51770), (4340, 49766), (4619, 46760), (4676, 46190), (5177, 41720), (5215, 41416), (5845, 36952), (5960, 36239), (6680, 32333), (8344, 25885), (8680, 24883), (9238, 23380), (9352, 23095), (10354, 20860), (10430, 20708), (11690, 18476)]