278657964

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{7537}}^1$

素因数の和:7639

約数の個数: 72

約数和(自身を含む): 768272960

約数和(自身を除く): 489614996

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 79, 117, 156, 158, 234, 237, 316, 468, 474, 711, 948, 1027, 1422, 2054, 2844, 3081, 4108, 6162, 7537, 9243, 12324, 15074, 18486, 22611, 30148, 36972, 45222, 67833, 90444, 97981, 135666, 195962, 271332, 293943, 391924, 587886, 595423, 881829, 1175772, 1190846, 1763658, 1786269, 2381692, 3527316, 3572538, 5358807, 7145076, 7740499, 10717614, 15480998, 21435228, 23221497, 30961996, 46442994, 69664491, 92885988, 139328982, 278657964]

約数ペア:

[(1, 278657964), (2, 139328982), (3, 92885988), (4, 69664491), (6, 46442994), (9, 30961996), (12, 23221497), (13, 21435228), (18, 15480998), (26, 10717614), (36, 7740499), (39, 7145076), (52, 5358807), (78, 3572538), (79, 3527316), (117, 2381692), (156, 1786269), (158, 1763658), (234, 1190846), (237, 1175772), (316, 881829), (468, 595423), (474, 587886), (711, 391924), (948, 293943), (1027, 271332), (1422, 195962), (2054, 135666), (2844, 97981), (3081, 90444), (4108, 67833), (6162, 45222), (7537, 36972), (9243, 30148), (12324, 22611), (15074, 18486)]