18741780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{503}}^1$

素因数の和:547

約数の個数: 120

約数和(自身を含む): 61471872

約数和(自身を除く): 42730092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 81, 90, 92, 108, 115, 135, 138, 162, 180, 207, 230, 270, 276, 324, 345, 405, 414, 460, 503, 540, 621, 690, 810, 828, 1006, 1035, 1242, 1380, 1509, 1620, 1863, 2012, 2070, 2484, 2515, 3018, 3105, 3726, 4140, 4527, 5030, 6036, 6210, 7452, 7545, 9054, 9315, 10060, 11569, 12420, 13581, 15090, 18108, 18630, 22635, 23138, 27162, 30180, 34707, 37260, 40743, 45270, 46276, 54324, 57845, 67905, 69414, 81486, 90540, 104121, 115690, 135810, 138828, 162972, 173535, 203715, 208242, 231380, 271620, 312363, 347070, 407430, 416484, 520605, 624726, 694140, 814860, 937089, 1041210, 1249452, 1561815, 1874178, 2082420, 3123630, 3748356, 4685445, 6247260, 9370890, 18741780]

約数ペア:

[(1, 18741780), (2, 9370890), (3, 6247260), (4, 4685445), (5, 3748356), (6, 3123630), (9, 2082420), (10, 1874178), (12, 1561815), (15, 1249452), (18, 1041210), (20, 937089), (23, 814860), (27, 694140), (30, 624726), (36, 520605), (45, 416484), (46, 407430), (54, 347070), (60, 312363), (69, 271620), (81, 231380), (90, 208242), (92, 203715), (108, 173535), (115, 162972), (135, 138828), (138, 135810), (162, 115690), (180, 104121), (207, 90540), (230, 81486), (270, 69414), (276, 67905), (324, 57845), (345, 54324), (405, 46276), (414, 45270), (460, 40743), (503, 37260), (540, 34707), (621, 30180), (690, 27162), (810, 23138), (828, 22635), (1006, 18630), (1035, 18108), (1242, 15090), (1380, 13581), (1509, 12420), (1620, 11569), (1863, 10060), (2012, 9315), (2070, 9054), (2484, 7545), (2515, 7452), (3018, 6210), (3105, 6036), (3726, 5030), (4140, 4527)]