20252880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1223}}^1$

素因数の和:1265

約数の個数: 120

約数和(自身を含む): 71031168

約数和(自身を除く): 50778288

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1223, 1380, 1656, 1840, 2070, 2446, 2760, 3312, 3669, 4140, 4892, 5520, 6115, 7338, 8280, 9784, 11007, 12230, 14676, 16560, 18345, 19568, 22014, 24460, 28129, 29352, 36690, 44028, 48920, 55035, 56258, 58704, 73380, 84387, 88056, 97840, 110070, 112516, 140645, 146760, 168774, 176112, 220140, 225032, 253161, 281290, 293520, 337548, 421935, 440280, 450064, 506322, 562580, 675096, 843870, 880560, 1012644, 1125160, 1265805, 1350192, 1687740, 2025288, 2250320, 2531610, 3375480, 4050576, 5063220, 6750960, 10126440, 20252880]

約数ペア:

[(1, 20252880), (2, 10126440), (3, 6750960), (4, 5063220), (5, 4050576), (6, 3375480), (8, 2531610), (9, 2250320), (10, 2025288), (12, 1687740), (15, 1350192), (16, 1265805), (18, 1125160), (20, 1012644), (23, 880560), (24, 843870), (30, 675096), (36, 562580), (40, 506322), (45, 450064), (46, 440280), (48, 421935), (60, 337548), (69, 293520), (72, 281290), (80, 253161), (90, 225032), (92, 220140), (115, 176112), (120, 168774), (138, 146760), (144, 140645), (180, 112516), (184, 110070), (207, 97840), (230, 88056), (240, 84387), (276, 73380), (345, 58704), (360, 56258), (368, 55035), (414, 48920), (460, 44028), (552, 36690), (690, 29352), (720, 28129), (828, 24460), (920, 22014), (1035, 19568), (1104, 18345), (1223, 16560), (1380, 14676), (1656, 12230), (1840, 11007), (2070, 9784), (2446, 8280), (2760, 7338), (3312, 6115), (3669, 5520), (4140, 4892)]