7811960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 19262880

約数和(自身を除く): 11450920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 83, 104, 130, 166, 181, 260, 332, 362, 415, 520, 664, 724, 830, 905, 1079, 1448, 1660, 1810, 2158, 2353, 3320, 3620, 4316, 4706, 5395, 7240, 8632, 9412, 10790, 11765, 15023, 18824, 21580, 23530, 30046, 43160, 47060, 60092, 75115, 94120, 120184, 150230, 195299, 300460, 390598, 600920, 781196, 976495, 1562392, 1952990, 3905980, 7811960]

約数ペア:

[(1, 7811960), (2, 3905980), (4, 1952990), (5, 1562392), (8, 976495), (10, 781196), (13, 600920), (20, 390598), (26, 300460), (40, 195299), (52, 150230), (65, 120184), (83, 94120), (104, 75115), (130, 60092), (166, 47060), (181, 43160), (260, 30046), (332, 23530), (362, 21580), (415, 18824), (520, 15023), (664, 11765), (724, 10790), (830, 9412), (905, 8632), (1079, 7240), (1448, 5395), (1660, 4706), (1810, 4316), (2158, 3620), (2353, 3320)]