15261220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{743}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 34997760

約数和(自身を除く): 19736540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 743, 790, 1027, 1486, 1580, 2054, 2972, 3715, 4108, 5135, 7430, 9659, 10270, 14860, 19318, 20540, 38636, 48295, 58697, 96590, 117394, 193180, 234788, 293485, 586970, 763061, 1173940, 1526122, 3052244, 3815305, 7630610, 15261220]

約数ペア:

[(1, 15261220), (2, 7630610), (4, 3815305), (5, 3052244), (10, 1526122), (13, 1173940), (20, 763061), (26, 586970), (52, 293485), (65, 234788), (79, 193180), (130, 117394), (158, 96590), (260, 58697), (316, 48295), (395, 38636), (743, 20540), (790, 19318), (1027, 14860), (1486, 10270), (1580, 9659), (2054, 7430), (2972, 5135), (3715, 4108)]