921280880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{6373}}^1$

素因数の和:6538

約数の個数: 80

約数和(自身を含む): 2323705440

約数和(自身を除く): 1402424560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 139, 208, 260, 278, 520, 556, 695, 1040, 1112, 1390, 1807, 2224, 2780, 3614, 5560, 6373, 7228, 9035, 11120, 12746, 14456, 18070, 25492, 28912, 31865, 36140, 50984, 63730, 72280, 82849, 101968, 127460, 144560, 165698, 254920, 331396, 414245, 509840, 662792, 828490, 885847, 1325584, 1656980, 1771694, 3313960, 3543388, 4429235, 6627920, 7086776, 8858470, 11516011, 14173552, 17716940, 23032022, 35433880, 46064044, 57580055, 70867760, 92128088, 115160110, 184256176, 230320220, 460640440, 921280880]

約数ペア:

[(1, 921280880), (2, 460640440), (4, 230320220), (5, 184256176), (8, 115160110), (10, 92128088), (13, 70867760), (16, 57580055), (20, 46064044), (26, 35433880), (40, 23032022), (52, 17716940), (65, 14173552), (80, 11516011), (104, 8858470), (130, 7086776), (139, 6627920), (208, 4429235), (260, 3543388), (278, 3313960), (520, 1771694), (556, 1656980), (695, 1325584), (1040, 885847), (1112, 828490), (1390, 662792), (1807, 509840), (2224, 414245), (2780, 331396), (3614, 254920), (5560, 165698), (6373, 144560), (7228, 127460), (9035, 101968), (11120, 82849), (12746, 72280), (14456, 63730), (18070, 50984), (25492, 36140), (28912, 31865)]