131870440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{691}}^1$

素因数の和:1082

約数の個数: 64

約数和(自身を含む): 320866560

約数和(自身を除く): 188996120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 367, 520, 691, 734, 1382, 1468, 1835, 2764, 2936, 3455, 3670, 4771, 5528, 6910, 7340, 8983, 9542, 13820, 14680, 17966, 19084, 23855, 27640, 35932, 38168, 44915, 47710, 71864, 89830, 95420, 179660, 190840, 253597, 359320, 507194, 1014388, 1267985, 2028776, 2535970, 3296761, 5071940, 6593522, 10143880, 13187044, 16483805, 26374088, 32967610, 65935220, 131870440]

約数ペア:

[(1, 131870440), (2, 65935220), (4, 32967610), (5, 26374088), (8, 16483805), (10, 13187044), (13, 10143880), (20, 6593522), (26, 5071940), (40, 3296761), (52, 2535970), (65, 2028776), (104, 1267985), (130, 1014388), (260, 507194), (367, 359320), (520, 253597), (691, 190840), (734, 179660), (1382, 95420), (1468, 89830), (1835, 71864), (2764, 47710), (2936, 44915), (3455, 38168), (3670, 35932), (4771, 27640), (5528, 23855), (6910, 19084), (7340, 17966), (8983, 14680), (9542, 13820)]