177745360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{617}}^1$

素因数の和:920

約数の個数: 80

約数和(自身を含む): 447377616

約数和(自身を除く): 269632256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 277, 520, 554, 617, 1040, 1108, 1234, 1385, 2216, 2468, 2770, 3085, 3601, 4432, 4936, 5540, 6170, 7202, 8021, 9872, 11080, 12340, 14404, 16042, 18005, 22160, 24680, 28808, 32084, 36010, 40105, 49360, 57616, 64168, 72020, 80210, 128336, 144040, 160420, 170909, 288080, 320840, 341818, 641680, 683636, 854545, 1367272, 1709090, 2221817, 2734544, 3418180, 4443634, 6836360, 8887268, 11109085, 13672720, 17774536, 22218170, 35549072, 44436340, 88872680, 177745360]

約数ペア:

[(1, 177745360), (2, 88872680), (4, 44436340), (5, 35549072), (8, 22218170), (10, 17774536), (13, 13672720), (16, 11109085), (20, 8887268), (26, 6836360), (40, 4443634), (52, 3418180), (65, 2734544), (80, 2221817), (104, 1709090), (130, 1367272), (208, 854545), (260, 683636), (277, 641680), (520, 341818), (554, 320840), (617, 288080), (1040, 170909), (1108, 160420), (1234, 144040), (1385, 128336), (2216, 80210), (2468, 72020), (2770, 64168), (3085, 57616), (3601, 49360), (4432, 40105), (4936, 36010), (5540, 32084), (6170, 28808), (7202, 24680), (8021, 22160), (9872, 18005), (11080, 16042), (12340, 14404)]