128439820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{9007}}^1$

素因数の和:9070

約数の個数: 48

約数和(自身を含む): 290562048

約数和(自身を除く): 162122228

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 155, 230, 310, 460, 620, 713, 1426, 2852, 3565, 7130, 9007, 14260, 18014, 36028, 45035, 90070, 180140, 207161, 279217, 414322, 558434, 828644, 1035805, 1116868, 1396085, 2071610, 2792170, 4143220, 5584340, 6421991, 12843982, 25687964, 32109955, 64219910, 128439820]

約数ペア:

[(1, 128439820), (2, 64219910), (4, 32109955), (5, 25687964), (10, 12843982), (20, 6421991), (23, 5584340), (31, 4143220), (46, 2792170), (62, 2071610), (92, 1396085), (115, 1116868), (124, 1035805), (155, 828644), (230, 558434), (310, 414322), (460, 279217), (620, 207161), (713, 180140), (1426, 90070), (2852, 45035), (3565, 36028), (7130, 18014), (9007, 14260)]