65000720

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^2\times {\mathrm{181}}^1$

素因数の和:328

約数の個数: 60

約数和(自身を含む): 154263564

約数和(自身を除く): 89262844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 181, 268, 335, 362, 536, 670, 724, 905, 1072, 1340, 1448, 1810, 2680, 2896, 3620, 4489, 5360, 7240, 8978, 12127, 14480, 17956, 22445, 24254, 35912, 44890, 48508, 60635, 71824, 89780, 97016, 121270, 179560, 194032, 242540, 359120, 485080, 812509, 970160, 1625018, 3250036, 4062545, 6500072, 8125090, 13000144, 16250180, 32500360, 65000720]

約数ペア:

[(1, 65000720), (2, 32500360), (4, 16250180), (5, 13000144), (8, 8125090), (10, 6500072), (16, 4062545), (20, 3250036), (40, 1625018), (67, 970160), (80, 812509), (134, 485080), (181, 359120), (268, 242540), (335, 194032), (362, 179560), (536, 121270), (670, 97016), (724, 89780), (905, 71824), (1072, 60635), (1340, 48508), (1448, 44890), (1810, 35912), (2680, 24254), (2896, 22445), (3620, 17956), (4489, 14480), (5360, 12127), (7240, 8978)]