1291248320

素因数分解:

$2^6\times 5^1\times {\mathrm{197}}^1\times {\mathrm{20483}}^1$

素因数の和:20697

約数の個数: 56

約数和(自身を含む): 3090543984

約数和(自身を除く): 1799295664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 197, 320, 394, 788, 985, 1576, 1970, 3152, 3940, 6304, 7880, 12608, 15760, 20483, 31520, 40966, 63040, 81932, 102415, 163864, 204830, 327728, 409660, 655456, 819320, 1310912, 1638640, 3277280, 4035151, 6554560, 8070302, 16140604, 20175755, 32281208, 40351510, 64562416, 80703020, 129124832, 161406040, 258249664, 322812080, 645624160, 1291248320]

約数ペア:

[(1, 1291248320), (2, 645624160), (4, 322812080), (5, 258249664), (8, 161406040), (10, 129124832), (16, 80703020), (20, 64562416), (32, 40351510), (40, 32281208), (64, 20175755), (80, 16140604), (160, 8070302), (197, 6554560), (320, 4035151), (394, 3277280), (788, 1638640), (985, 1310912), (1576, 819320), (1970, 655456), (3152, 409660), (3940, 327728), (6304, 204830), (7880, 163864), (12608, 102415), (15760, 81932), (20483, 63040), (31520, 40966)]