2678215140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{209563}}^1$

素因数の和:209649

約数の個数: 72

約数和(自身を含む): 8238379968

約数和(自身を除く): 5560164828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 209563, 419126, 628689, 838252, 1047815, 1257378, 1886067, 2095630, 2514756, 3143445, 3772134, 4191260, 6286890, 7544268, 9430335, 12573780, 14878973, 18860670, 29757946, 37721340, 44636919, 59515892, 74394865, 89273838, 133910757, 148789730, 178547676, 223184595, 267821514, 297579460, 446369190, 535643028, 669553785, 892738380, 1339107570, 2678215140]

約数ペア:

[(1, 2678215140), (2, 1339107570), (3, 892738380), (4, 669553785), (5, 535643028), (6, 446369190), (9, 297579460), (10, 267821514), (12, 223184595), (15, 178547676), (18, 148789730), (20, 133910757), (30, 89273838), (36, 74394865), (45, 59515892), (60, 44636919), (71, 37721340), (90, 29757946), (142, 18860670), (180, 14878973), (213, 12573780), (284, 9430335), (355, 7544268), (426, 6286890), (639, 4191260), (710, 3772134), (852, 3143445), (1065, 2514756), (1278, 2095630), (1420, 1886067), (2130, 1257378), (2556, 1047815), (3195, 838252), (4260, 628689), (6390, 419126), (12780, 209563)]