81843640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{953}}^1$

素因数の和:1096

約数の個数: 64

約数和(自身を含む): 195760800

約数和(自身を除く): 113917160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 113, 152, 190, 226, 380, 452, 565, 760, 904, 953, 1130, 1906, 2147, 2260, 3812, 4294, 4520, 4765, 7624, 8588, 9530, 10735, 17176, 18107, 19060, 21470, 36214, 38120, 42940, 72428, 85880, 90535, 107689, 144856, 181070, 215378, 362140, 430756, 538445, 724280, 861512, 1076890, 2046091, 2153780, 4092182, 4307560, 8184364, 10230455, 16368728, 20460910, 40921820, 81843640]

約数ペア:

[(1, 81843640), (2, 40921820), (4, 20460910), (5, 16368728), (8, 10230455), (10, 8184364), (19, 4307560), (20, 4092182), (38, 2153780), (40, 2046091), (76, 1076890), (95, 861512), (113, 724280), (152, 538445), (190, 430756), (226, 362140), (380, 215378), (452, 181070), (565, 144856), (760, 107689), (904, 90535), (953, 85880), (1130, 72428), (1906, 42940), (2147, 38120), (2260, 36214), (3812, 21470), (4294, 19060), (4520, 18107), (4765, 17176), (7624, 10735), (8588, 9530)]