1287973960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{1069}}^1$

素因数の和:1431

約数の個数: 128

約数和(自身を含む): 3580819200

約数和(自身を除く): 2292845240

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 331, 364, 455, 520, 662, 728, 910, 1069, 1324, 1655, 1820, 2138, 2317, 2648, 3310, 3640, 4276, 4303, 4634, 5345, 6620, 7483, 8552, 8606, 9268, 10690, 11585, 13240, 13897, 14966, 17212, 18536, 21380, 21515, 23170, 27794, 29932, 30121, 34424, 37415, 42760, 43030, 46340, 55588, 59864, 60242, 69485, 74830, 86060, 92680, 97279, 111176, 120484, 138970, 149660, 150605, 172120, 194558, 240968, 277940, 299320, 301210, 353839, 389116, 486395, 555880, 602420, 707678, 778232, 972790, 1204840, 1415356, 1769195, 1945580, 2476873, 2830712, 3538390, 3891160, 4599907, 4953746, 7076780, 9199814, 9907492, 12384365, 14153560, 18399628, 19814984, 22999535, 24768730, 32199349, 36799256, 45999070, 49537460, 64398698, 91998140, 99074920, 128797396, 160996745, 183996280, 257594792, 321993490, 643986980, 1287973960]

約数ペア:

[(1, 1287973960), (2, 643986980), (4, 321993490), (5, 257594792), (7, 183996280), (8, 160996745), (10, 128797396), (13, 99074920), (14, 91998140), (20, 64398698), (26, 49537460), (28, 45999070), (35, 36799256), (40, 32199349), (52, 24768730), (56, 22999535), (65, 19814984), (70, 18399628), (91, 14153560), (104, 12384365), (130, 9907492), (140, 9199814), (182, 7076780), (260, 4953746), (280, 4599907), (331, 3891160), (364, 3538390), (455, 2830712), (520, 2476873), (662, 1945580), (728, 1769195), (910, 1415356), (1069, 1204840), (1324, 972790), (1655, 778232), (1820, 707678), (2138, 602420), (2317, 555880), (2648, 486395), (3310, 389116), (3640, 353839), (4276, 301210), (4303, 299320), (4634, 277940), (5345, 240968), (6620, 194558), (7483, 172120), (8552, 150605), (8606, 149660), (9268, 138970), (10690, 120484), (11585, 111176), (13240, 97279), (13897, 92680), (14966, 86060), (17212, 74830), (18536, 69485), (21380, 60242), (21515, 59864), (23170, 55588), (27794, 46340), (29932, 43030), (30121, 42760), (34424, 37415)]