261996280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{431}}^1$

素因数の和:629

約数の個数: 128

約数和(自身を含む): 731566080

約数和(自身を除く): 469569800

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, 167, 182, 260, 280, 334, 364, 431, 455, 520, 668, 728, 835, 862, 910, 1169, 1336, 1670, 1724, 1820, 2155, 2171, 2338, 3017, 3340, 3448, 3640, 4310, 4342, 4676, 5603, 5845, 6034, 6680, 8620, 8684, 9352, 10855, 11206, 11690, 12068, 15085, 15197, 17240, 17368, 21710, 22412, 23380, 24136, 28015, 30170, 30394, 39221, 43420, 44824, 46760, 56030, 60340, 60788, 71977, 75985, 78442, 86840, 112060, 120680, 121576, 143954, 151970, 156884, 196105, 224120, 287908, 303940, 313768, 359885, 392210, 503839, 575816, 607880, 719770, 784420, 935701, 1007678, 1439540, 1568840, 1871402, 2015356, 2519195, 2879080, 3742804, 4030712, 4678505, 5038390, 6549907, 7485608, 9357010, 10076780, 13099814, 18714020, 20153560, 26199628, 32749535, 37428040, 52399256, 65499070, 130998140, 261996280]

約数ペア:

[(1, 261996280), (2, 130998140), (4, 65499070), (5, 52399256), (7, 37428040), (8, 32749535), (10, 26199628), (13, 20153560), (14, 18714020), (20, 13099814), (26, 10076780), (28, 9357010), (35, 7485608), (40, 6549907), (52, 5038390), (56, 4678505), (65, 4030712), (70, 3742804), (91, 2879080), (104, 2519195), (130, 2015356), (140, 1871402), (167, 1568840), (182, 1439540), (260, 1007678), (280, 935701), (334, 784420), (364, 719770), (431, 607880), (455, 575816), (520, 503839), (668, 392210), (728, 359885), (835, 313768), (862, 303940), (910, 287908), (1169, 224120), (1336, 196105), (1670, 156884), (1724, 151970), (1820, 143954), (2155, 121576), (2171, 120680), (2338, 112060), (3017, 86840), (3340, 78442), (3448, 75985), (3640, 71977), (4310, 60788), (4342, 60340), (4676, 56030), (5603, 46760), (5845, 44824), (6034, 43420), (6680, 39221), (8620, 30394), (8684, 30170), (9352, 28015), (10855, 24136), (11206, 23380), (11690, 22412), (12068, 21710), (15085, 17368), (15197, 17240)]