81891992

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{509}}^1$

素因数の和:565

約数の個数: 96

約数和(自身を含む): 201592800

約数和(自身を除く): 119700808

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 26, 28, 34, 52, 56, 68, 91, 104, 119, 136, 169, 182, 221, 238, 338, 364, 442, 476, 509, 676, 728, 884, 952, 1018, 1183, 1352, 1547, 1768, 2036, 2366, 2873, 3094, 3563, 4072, 4732, 5746, 6188, 6617, 7126, 8653, 9464, 11492, 12376, 13234, 14252, 17306, 20111, 22984, 26468, 28504, 34612, 40222, 46319, 52936, 60571, 69224, 80444, 86021, 92638, 112489, 121142, 160888, 172042, 185276, 224978, 242284, 344084, 370552, 449956, 484568, 602147, 688168, 787423, 899912, 1204294, 1462357, 1574846, 2408588, 2924714, 3149692, 4817176, 5849428, 6299384, 10236499, 11698856, 20472998, 40945996, 81891992]

約数ペア:

[(1, 81891992), (2, 40945996), (4, 20472998), (7, 11698856), (8, 10236499), (13, 6299384), (14, 5849428), (17, 4817176), (26, 3149692), (28, 2924714), (34, 2408588), (52, 1574846), (56, 1462357), (68, 1204294), (91, 899912), (104, 787423), (119, 688168), (136, 602147), (169, 484568), (182, 449956), (221, 370552), (238, 344084), (338, 242284), (364, 224978), (442, 185276), (476, 172042), (509, 160888), (676, 121142), (728, 112489), (884, 92638), (952, 86021), (1018, 80444), (1183, 69224), (1352, 60571), (1547, 52936), (1768, 46319), (2036, 40222), (2366, 34612), (2873, 28504), (3094, 26468), (3563, 22984), (4072, 20111), (4732, 17306), (5746, 14252), (6188, 13234), (6617, 12376), (7126, 11492), (8653, 9464)]