20959440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3797}}^1$

素因数の和:3836

約数の個数: 80

約数和(自身を含む): 67817088

約数和(自身を除く): 46857648

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3797, 5520, 7594, 11391, 15188, 18985, 22782, 30376, 37970, 45564, 56955, 60752, 75940, 87331, 91128, 113910, 151880, 174662, 182256, 227820, 261993, 303760, 349324, 436655, 455640, 523986, 698648, 873310, 911280, 1047972, 1309965, 1397296, 1746620, 2095944, 2619930, 3493240, 4191888, 5239860, 6986480, 10479720, 20959440]

約数ペア:

[(1, 20959440), (2, 10479720), (3, 6986480), (4, 5239860), (5, 4191888), (6, 3493240), (8, 2619930), (10, 2095944), (12, 1746620), (15, 1397296), (16, 1309965), (20, 1047972), (23, 911280), (24, 873310), (30, 698648), (40, 523986), (46, 455640), (48, 436655), (60, 349324), (69, 303760), (80, 261993), (92, 227820), (115, 182256), (120, 174662), (138, 151880), (184, 113910), (230, 91128), (240, 87331), (276, 75940), (345, 60752), (368, 56955), (460, 45564), (552, 37970), (690, 30376), (920, 22782), (1104, 18985), (1380, 15188), (1840, 11391), (2760, 7594), (3797, 5520)]