18203120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{761}}^1$

素因数の和:810

約数の個数: 80

約数和(自身を含む): 47621952

約数和(自身を除く): 29418832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 184, 208, 230, 260, 299, 368, 460, 520, 598, 761, 920, 1040, 1196, 1495, 1522, 1840, 2392, 2990, 3044, 3805, 4784, 5980, 6088, 7610, 9893, 11960, 12176, 15220, 17503, 19786, 23920, 30440, 35006, 39572, 49465, 60880, 70012, 79144, 87515, 98930, 140024, 158288, 175030, 197860, 227539, 280048, 350060, 395720, 455078, 700120, 791440, 910156, 1137695, 1400240, 1820312, 2275390, 3640624, 4550780, 9101560, 18203120]

約数ペア:

[(1, 18203120), (2, 9101560), (4, 4550780), (5, 3640624), (8, 2275390), (10, 1820312), (13, 1400240), (16, 1137695), (20, 910156), (23, 791440), (26, 700120), (40, 455078), (46, 395720), (52, 350060), (65, 280048), (80, 227539), (92, 197860), (104, 175030), (115, 158288), (130, 140024), (184, 98930), (208, 87515), (230, 79144), (260, 70012), (299, 60880), (368, 49465), (460, 39572), (520, 35006), (598, 30440), (761, 23920), (920, 19786), (1040, 17503), (1196, 15220), (1495, 12176), (1522, 11960), (1840, 9893), (2392, 7610), (2990, 6088), (3044, 5980), (3805, 4784)]