8304140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2$

素因数の和:123

約数の個数: 72

約数和(自身を含む): 20262480

約数和(自身を除く): 11958340

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 41, 52, 65, 76, 82, 95, 130, 164, 190, 205, 247, 260, 380, 410, 494, 533, 779, 820, 988, 1066, 1235, 1558, 1681, 2132, 2470, 2665, 3116, 3362, 3895, 4940, 5330, 6724, 7790, 8405, 10127, 10660, 15580, 16810, 20254, 21853, 31939, 33620, 40508, 43706, 50635, 63878, 87412, 101270, 109265, 127756, 159695, 202540, 218530, 319390, 415207, 437060, 638780, 830414, 1660828, 2076035, 4152070, 8304140]

約数ペア:

[(1, 8304140), (2, 4152070), (4, 2076035), (5, 1660828), (10, 830414), (13, 638780), (19, 437060), (20, 415207), (26, 319390), (38, 218530), (41, 202540), (52, 159695), (65, 127756), (76, 109265), (82, 101270), (95, 87412), (130, 63878), (164, 50635), (190, 43706), (205, 40508), (247, 33620), (260, 31939), (380, 21853), (410, 20254), (494, 16810), (533, 15580), (779, 10660), (820, 10127), (988, 8405), (1066, 7790), (1235, 6724), (1558, 5330), (1681, 4940), (2132, 3895), (2470, 3362), (2665, 3116)]