20180921384

素因数分解:

$2^3\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{37039}}^1$

素因数の和:37115

約数の個数: 64

約数和(自身を含む): 42314496000

約数和(自身を除く): 22133574616

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 169, 248, 338, 403, 676, 806, 1352, 1612, 2197, 3224, 4394, 5239, 8788, 10478, 17576, 20956, 37039, 41912, 68107, 74078, 136214, 148156, 272428, 296312, 481507, 544856, 963014, 1148209, 1926028, 2296418, 3852056, 4592836, 6259591, 9185672, 12519182, 14926717, 25038364, 29853434, 50076728, 59706868, 81374683, 119413736, 162749366, 194047321, 325498732, 388094642, 650997464, 776189284, 1552378568, 2522615173, 5045230346, 10090460692, 20180921384]

約数ペア:

[(1, 20180921384), (2, 10090460692), (4, 5045230346), (8, 2522615173), (13, 1552378568), (26, 776189284), (31, 650997464), (52, 388094642), (62, 325498732), (104, 194047321), (124, 162749366), (169, 119413736), (248, 81374683), (338, 59706868), (403, 50076728), (676, 29853434), (806, 25038364), (1352, 14926717), (1612, 12519182), (2197, 9185672), (3224, 6259591), (4394, 4592836), (5239, 3852056), (8788, 2296418), (10478, 1926028), (17576, 1148209), (20956, 963014), (37039, 544856), (41912, 481507), (68107, 296312), (74078, 272428), (136214, 148156)]