1256315920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{4483}}^1$

素因数の和:4640

約数の個数: 80

約数和(自身を含む): 3042519552

約数和(自身を除く): 1786203632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 113, 124, 155, 226, 248, 310, 452, 496, 565, 620, 904, 1130, 1240, 1808, 2260, 2480, 3503, 4483, 4520, 7006, 8966, 9040, 14012, 17515, 17932, 22415, 28024, 35030, 35864, 44830, 56048, 70060, 71728, 89660, 138973, 140120, 179320, 277946, 280240, 358640, 506579, 555892, 694865, 1013158, 1111784, 1389730, 2026316, 2223568, 2532895, 2779460, 4052632, 5065790, 5558920, 8105264, 10131580, 11117840, 15703949, 20263160, 31407898, 40526320, 62815796, 78519745, 125631592, 157039490, 251263184, 314078980, 628157960, 1256315920]

約数ペア:

[(1, 1256315920), (2, 628157960), (4, 314078980), (5, 251263184), (8, 157039490), (10, 125631592), (16, 78519745), (20, 62815796), (31, 40526320), (40, 31407898), (62, 20263160), (80, 15703949), (113, 11117840), (124, 10131580), (155, 8105264), (226, 5558920), (248, 5065790), (310, 4052632), (452, 2779460), (496, 2532895), (565, 2223568), (620, 2026316), (904, 1389730), (1130, 1111784), (1240, 1013158), (1808, 694865), (2260, 555892), (2480, 506579), (3503, 358640), (4483, 280240), (4520, 277946), (7006, 179320), (8966, 140120), (9040, 138973), (14012, 89660), (17515, 71728), (17932, 70060), (22415, 56048), (28024, 44830), (35030, 35864)]