388621480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{4129}}^1$

素因数の和:4334

約数の個数: 64

約数和(自身を含む): 947091600

約数和(自身を除く): 558470120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 181, 260, 362, 520, 724, 905, 1448, 1810, 2353, 3620, 4129, 4706, 7240, 8258, 9412, 11765, 16516, 18824, 20645, 23530, 33032, 41290, 47060, 53677, 82580, 94120, 107354, 165160, 214708, 268385, 429416, 536770, 747349, 1073540, 1494698, 2147080, 2989396, 3736745, 5978792, 7473490, 9715537, 14946980, 19431074, 29893960, 38862148, 48577685, 77724296, 97155370, 194310740, 388621480]

約数ペア:

[(1, 388621480), (2, 194310740), (4, 97155370), (5, 77724296), (8, 48577685), (10, 38862148), (13, 29893960), (20, 19431074), (26, 14946980), (40, 9715537), (52, 7473490), (65, 5978792), (104, 3736745), (130, 2989396), (181, 2147080), (260, 1494698), (362, 1073540), (520, 747349), (724, 536770), (905, 429416), (1448, 268385), (1810, 214708), (2353, 165160), (3620, 107354), (4129, 94120), (4706, 82580), (7240, 53677), (8258, 47060), (9412, 41290), (11765, 33032), (16516, 23530), (18824, 20645)]