68137420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1061}}^1$

素因数の和:1115

約数の個数: 72

約数和(自身を含む): 163250640

約数和(自身を除く): 95113220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 169, 190, 247, 260, 338, 380, 494, 676, 845, 988, 1061, 1235, 1690, 2122, 2470, 3211, 3380, 4244, 4940, 5305, 6422, 10610, 12844, 13793, 16055, 20159, 21220, 27586, 32110, 40318, 55172, 64220, 68965, 80636, 100795, 137930, 179309, 201590, 262067, 275860, 358618, 403180, 524134, 717236, 896545, 1048268, 1310335, 1793090, 2620670, 3406871, 3586180, 5241340, 6813742, 13627484, 17034355, 34068710, 68137420]

約数ペア:

[(1, 68137420), (2, 34068710), (4, 17034355), (5, 13627484), (10, 6813742), (13, 5241340), (19, 3586180), (20, 3406871), (26, 2620670), (38, 1793090), (52, 1310335), (65, 1048268), (76, 896545), (95, 717236), (130, 524134), (169, 403180), (190, 358618), (247, 275860), (260, 262067), (338, 201590), (380, 179309), (494, 137930), (676, 100795), (845, 80636), (988, 68965), (1061, 64220), (1235, 55172), (1690, 40318), (2122, 32110), (2470, 27586), (3211, 21220), (3380, 20159), (4244, 16055), (4940, 13793), (5305, 12844), (6422, 10610)]