26819960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{503}}^1$

素因数の和:588

約数の個数: 64

約数和(自身を含む): 63866880

約数和(自身を除く): 37046920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 430, 503, 620, 860, 1006, 1240, 1333, 1720, 2012, 2515, 2666, 4024, 5030, 5332, 6665, 10060, 10664, 13330, 15593, 20120, 21629, 26660, 31186, 43258, 53320, 62372, 77965, 86516, 108145, 124744, 155930, 173032, 216290, 311860, 432580, 623720, 670499, 865160, 1340998, 2681996, 3352495, 5363992, 6704990, 13409980, 26819960]

約数ペア:

[(1, 26819960), (2, 13409980), (4, 6704990), (5, 5363992), (8, 3352495), (10, 2681996), (20, 1340998), (31, 865160), (40, 670499), (43, 623720), (62, 432580), (86, 311860), (124, 216290), (155, 173032), (172, 155930), (215, 124744), (248, 108145), (310, 86516), (344, 77965), (430, 62372), (503, 53320), (620, 43258), (860, 31186), (1006, 26660), (1240, 21629), (1333, 20120), (1720, 15593), (2012, 13330), (2515, 10664), (2666, 10060), (4024, 6665), (5030, 5332)]