87572420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{1993}}^1$

素因数の和:2041

約数の個数: 48

約数和(自身を含む): 199320240

約数和(自身を除く): 111747820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 1993, 2197, 3380, 3986, 4394, 7972, 8788, 9965, 10985, 19930, 21970, 25909, 39860, 43940, 51818, 103636, 129545, 259090, 336817, 518180, 673634, 1347268, 1684085, 3368170, 4378621, 6736340, 8757242, 17514484, 21893105, 43786210, 87572420]

約数ペア:

[(1, 87572420), (2, 43786210), (4, 21893105), (5, 17514484), (10, 8757242), (13, 6736340), (20, 4378621), (26, 3368170), (52, 1684085), (65, 1347268), (130, 673634), (169, 518180), (260, 336817), (338, 259090), (676, 129545), (845, 103636), (1690, 51818), (1993, 43940), (2197, 39860), (3380, 25909), (3986, 21970), (4394, 19930), (7972, 10985), (8788, 9965)]