245489868

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{16921}}^1$

素因数の和:16975

約数の個数: 72

約数和(自身を含む): 689876096

約数和(自身を除く): 444386228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1612, 2418, 3627, 4836, 7254, 14508, 16921, 33842, 50763, 67684, 101526, 152289, 203052, 219973, 304578, 439946, 524551, 609156, 659919, 879892, 1049102, 1319838, 1573653, 1979757, 2098204, 2639676, 3147306, 3959514, 4720959, 6294612, 6819163, 7919028, 9441918, 13638326, 18883836, 20457489, 27276652, 40914978, 61372467, 81829956, 122744934, 245489868]

約数ペア:

[(1, 245489868), (2, 122744934), (3, 81829956), (4, 61372467), (6, 40914978), (9, 27276652), (12, 20457489), (13, 18883836), (18, 13638326), (26, 9441918), (31, 7919028), (36, 6819163), (39, 6294612), (52, 4720959), (62, 3959514), (78, 3147306), (93, 2639676), (117, 2098204), (124, 1979757), (156, 1573653), (186, 1319838), (234, 1049102), (279, 879892), (372, 659919), (403, 609156), (468, 524551), (558, 439946), (806, 304578), (1116, 219973), (1209, 203052), (1612, 152289), (2418, 101526), (3627, 67684), (4836, 50763), (7254, 33842), (14508, 16921)]