261865680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{577}}^1$

素因数の和:685

約数の個数: 160

約数和(自身を含む): 853183488

約数和(自身を除く): 591317808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 61, 62, 80, 93, 120, 122, 124, 155, 183, 186, 240, 244, 248, 305, 310, 366, 372, 465, 488, 496, 577, 610, 620, 732, 744, 915, 930, 976, 1154, 1220, 1240, 1464, 1488, 1731, 1830, 1860, 1891, 2308, 2440, 2480, 2885, 2928, 3462, 3660, 3720, 3782, 4616, 4880, 5673, 5770, 6924, 7320, 7440, 7564, 8655, 9232, 9455, 11346, 11540, 13848, 14640, 15128, 17310, 17887, 18910, 22692, 23080, 27696, 28365, 30256, 34620, 35197, 35774, 37820, 45384, 46160, 53661, 56730, 69240, 70394, 71548, 75640, 89435, 90768, 105591, 107322, 113460, 138480, 140788, 143096, 151280, 175985, 178870, 211182, 214644, 226920, 268305, 281576, 286192, 351970, 357740, 422364, 429288, 453840, 527955, 536610, 563152, 703940, 715480, 844728, 858576, 1055910, 1073220, 1091107, 1407880, 1430960, 1689456, 2111820, 2146440, 2182214, 2815760, 3273321, 4223640, 4292880, 4364428, 5455535, 6546642, 8447280, 8728856, 10911070, 13093284, 16366605, 17457712, 21822140, 26186568, 32733210, 43644280, 52373136, 65466420, 87288560, 130932840, 261865680]

約数ペア:

[(1, 261865680), (2, 130932840), (3, 87288560), (4, 65466420), (5, 52373136), (6, 43644280), (8, 32733210), (10, 26186568), (12, 21822140), (15, 17457712), (16, 16366605), (20, 13093284), (24, 10911070), (30, 8728856), (31, 8447280), (40, 6546642), (48, 5455535), (60, 4364428), (61, 4292880), (62, 4223640), (80, 3273321), (93, 2815760), (120, 2182214), (122, 2146440), (124, 2111820), (155, 1689456), (183, 1430960), (186, 1407880), (240, 1091107), (244, 1073220), (248, 1055910), (305, 858576), (310, 844728), (366, 715480), (372, 703940), (465, 563152), (488, 536610), (496, 527955), (577, 453840), (610, 429288), (620, 422364), (732, 357740), (744, 351970), (915, 286192), (930, 281576), (976, 268305), (1154, 226920), (1220, 214644), (1240, 211182), (1464, 178870), (1488, 175985), (1731, 151280), (1830, 143096), (1860, 140788), (1891, 138480), (2308, 113460), (2440, 107322), (2480, 105591), (2885, 90768), (2928, 89435), (3462, 75640), (3660, 71548), (3720, 70394), (3782, 69240), (4616, 56730), (4880, 53661), (5673, 46160), (5770, 45384), (6924, 37820), (7320, 35774), (7440, 35197), (7564, 34620), (8655, 30256), (9232, 28365), (9455, 27696), (11346, 23080), (11540, 22692), (13848, 18910), (14640, 17887), (15128, 17310)]