77021720

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{773}}^1$

素因数の和:884

約数の個数: 64

約数和(自身を含む): 180558720

約数和(自身を除く): 103537000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 53, 94, 106, 188, 212, 235, 265, 376, 424, 470, 530, 773, 940, 1060, 1546, 1880, 2120, 2491, 3092, 3865, 4982, 6184, 7730, 9964, 12455, 15460, 19928, 24910, 30920, 36331, 40969, 49820, 72662, 81938, 99640, 145324, 163876, 181655, 204845, 290648, 327752, 363310, 409690, 726620, 819380, 1453240, 1638760, 1925543, 3851086, 7702172, 9627715, 15404344, 19255430, 38510860, 77021720]

約数ペア:

[(1, 77021720), (2, 38510860), (4, 19255430), (5, 15404344), (8, 9627715), (10, 7702172), (20, 3851086), (40, 1925543), (47, 1638760), (53, 1453240), (94, 819380), (106, 726620), (188, 409690), (212, 363310), (235, 327752), (265, 290648), (376, 204845), (424, 181655), (470, 163876), (530, 145324), (773, 99640), (940, 81938), (1060, 72662), (1546, 49820), (1880, 40969), (2120, 36331), (2491, 30920), (3092, 24910), (3865, 19928), (4982, 15460), (6184, 12455), (7730, 9964)]