215807120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{503}}^1$

素因数の和:720

約数の個数: 80

約数和(自身を含む): 521966592

約数和(自身を除く): 306159472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 173, 248, 310, 346, 496, 503, 620, 692, 865, 1006, 1240, 1384, 1730, 2012, 2480, 2515, 2768, 3460, 4024, 5030, 5363, 6920, 8048, 10060, 10726, 13840, 15593, 20120, 21452, 26815, 31186, 40240, 42904, 53630, 62372, 77965, 85808, 87019, 107260, 124744, 155930, 174038, 214520, 249488, 311860, 348076, 429040, 435095, 623720, 696152, 870190, 1247440, 1392304, 1740380, 2697589, 3480760, 5395178, 6961520, 10790356, 13487945, 21580712, 26975890, 43161424, 53951780, 107903560, 215807120]

約数ペア:

[(1, 215807120), (2, 107903560), (4, 53951780), (5, 43161424), (8, 26975890), (10, 21580712), (16, 13487945), (20, 10790356), (31, 6961520), (40, 5395178), (62, 3480760), (80, 2697589), (124, 1740380), (155, 1392304), (173, 1247440), (248, 870190), (310, 696152), (346, 623720), (496, 435095), (503, 429040), (620, 348076), (692, 311860), (865, 249488), (1006, 214520), (1240, 174038), (1384, 155930), (1730, 124744), (2012, 107260), (2480, 87019), (2515, 85808), (2768, 77965), (3460, 62372), (4024, 53630), (5030, 42904), (5363, 40240), (6920, 31186), (8048, 26815), (10060, 21452), (10726, 20120), (13840, 15593)]