71582120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{971}}^1$

素因数の和:1098

約数の個数: 64

約数和(自身を含む): 171460800

約数和(自身を除く): 99878680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 97, 152, 190, 194, 380, 388, 485, 760, 776, 970, 971, 1843, 1940, 1942, 3686, 3880, 3884, 4855, 7372, 7768, 9215, 9710, 14744, 18430, 18449, 19420, 36860, 36898, 38840, 73720, 73796, 92245, 94187, 147592, 184490, 188374, 368980, 376748, 470935, 737960, 753496, 941870, 1789553, 1883740, 3579106, 3767480, 7158212, 8947765, 14316424, 17895530, 35791060, 71582120]

約数ペア:

[(1, 71582120), (2, 35791060), (4, 17895530), (5, 14316424), (8, 8947765), (10, 7158212), (19, 3767480), (20, 3579106), (38, 1883740), (40, 1789553), (76, 941870), (95, 753496), (97, 737960), (152, 470935), (190, 376748), (194, 368980), (380, 188374), (388, 184490), (485, 147592), (760, 94187), (776, 92245), (970, 73796), (971, 73720), (1843, 38840), (1940, 36898), (1942, 36860), (3686, 19420), (3880, 18449), (3884, 18430), (4855, 14744), (7372, 9710), (7768, 9215)]