51621440

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12409}}^1$

素因数の和:12439

約数の個数: 56

約数和(自身を含む): 132389880

約数和(自身を除く): 80768440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 12409, 24818, 49636, 62045, 99272, 124090, 161317, 198544, 248180, 322634, 397088, 496360, 645268, 794176, 806585, 992720, 1290536, 1613170, 1985440, 2581072, 3226340, 3970880, 5162144, 6452680, 10324288, 12905360, 25810720, 51621440]

約数ペア:

[(1, 51621440), (2, 25810720), (4, 12905360), (5, 10324288), (8, 6452680), (10, 5162144), (13, 3970880), (16, 3226340), (20, 2581072), (26, 1985440), (32, 1613170), (40, 1290536), (52, 992720), (64, 806585), (65, 794176), (80, 645268), (104, 496360), (130, 397088), (160, 322634), (208, 248180), (260, 198544), (320, 161317), (416, 124090), (520, 99272), (832, 62045), (1040, 49636), (2080, 24818), (4160, 12409)]