20180550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:238

約数の個数: 96

約数和(自身を含む): 54996480

約数和(自身を除く): 34815930

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 79, 130, 131, 150, 158, 195, 237, 262, 325, 390, 393, 395, 474, 650, 655, 786, 790, 975, 1027, 1185, 1310, 1703, 1950, 1965, 1975, 2054, 2370, 3081, 3275, 3406, 3930, 3950, 5109, 5135, 5925, 6162, 6550, 8515, 9825, 10218, 10270, 10349, 11850, 15405, 17030, 19650, 20698, 25545, 25675, 30810, 31047, 42575, 51090, 51350, 51745, 62094, 77025, 85150, 103490, 127725, 134537, 154050, 155235, 255450, 258725, 269074, 310470, 403611, 517450, 672685, 776175, 807222, 1345370, 1552350, 2018055, 3363425, 4036110, 6726850, 10090275, 20180550]

約数ペア:

[(1, 20180550), (2, 10090275), (3, 6726850), (5, 4036110), (6, 3363425), (10, 2018055), (13, 1552350), (15, 1345370), (25, 807222), (26, 776175), (30, 672685), (39, 517450), (50, 403611), (65, 310470), (75, 269074), (78, 258725), (79, 255450), (130, 155235), (131, 154050), (150, 134537), (158, 127725), (195, 103490), (237, 85150), (262, 77025), (325, 62094), (390, 51745), (393, 51350), (395, 51090), (474, 42575), (650, 31047), (655, 30810), (786, 25675), (790, 25545), (975, 20698), (1027, 19650), (1185, 17030), (1310, 15405), (1703, 11850), (1950, 10349), (1965, 10270), (1975, 10218), (2054, 9825), (2370, 8515), (3081, 6550), (3275, 6162), (3406, 5925), (3930, 5135), (3950, 5109)]