125991440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{503}}^1$

素因数の和:648

約数の個数: 80

約数和(自身を含む): 305980416

約数和(自身を除く): 179988976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 101, 124, 155, 202, 248, 310, 404, 496, 503, 505, 620, 808, 1006, 1010, 1240, 1616, 2012, 2020, 2480, 2515, 3131, 4024, 4040, 5030, 6262, 8048, 8080, 10060, 12524, 15593, 15655, 20120, 25048, 31186, 31310, 40240, 50096, 50803, 62372, 62620, 77965, 101606, 124744, 125240, 155930, 203212, 249488, 250480, 254015, 311860, 406424, 508030, 623720, 812848, 1016060, 1247440, 1574893, 2032120, 3149786, 4064240, 6299572, 7874465, 12599144, 15748930, 25198288, 31497860, 62995720, 125991440]

約数ペア:

[(1, 125991440), (2, 62995720), (4, 31497860), (5, 25198288), (8, 15748930), (10, 12599144), (16, 7874465), (20, 6299572), (31, 4064240), (40, 3149786), (62, 2032120), (80, 1574893), (101, 1247440), (124, 1016060), (155, 812848), (202, 623720), (248, 508030), (310, 406424), (404, 311860), (496, 254015), (503, 250480), (505, 249488), (620, 203212), (808, 155930), (1006, 125240), (1010, 124744), (1240, 101606), (1616, 77965), (2012, 62620), (2020, 62372), (2480, 50803), (2515, 50096), (3131, 40240), (4024, 31310), (4040, 31186), (5030, 25048), (6262, 20120), (8048, 15655), (8080, 15593), (10060, 12524)]