20263920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3671}}^1$

素因数の和:3710

約数の個数: 80

約数和(自身を含む): 65567232

約数和(自身を除く): 45303312

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, 3671, 5520, 7342, 11013, 14684, 18355, 22026, 29368, 36710, 44052, 55065, 58736, 73420, 84433, 88104, 110130, 146840, 168866, 176208, 220260, 253299, 293680, 337732, 422165, 440520, 506598, 675464, 844330, 881040, 1013196, 1266495, 1350928, 1688660, 2026392, 2532990, 3377320, 4052784, 5065980, 6754640, 10131960, 20263920]

約数ペア:

[(1, 20263920), (2, 10131960), (3, 6754640), (4, 5065980), (5, 4052784), (6, 3377320), (8, 2532990), (10, 2026392), (12, 1688660), (15, 1350928), (16, 1266495), (20, 1013196), (23, 881040), (24, 844330), (30, 675464), (40, 506598), (46, 440520), (48, 422165), (60, 337732), (69, 293680), (80, 253299), (92, 220260), (115, 176208), (120, 168866), (138, 146840), (184, 110130), (230, 88104), (240, 84433), (276, 73420), (345, 58736), (368, 55065), (460, 44052), (552, 36710), (690, 29368), (920, 22026), (1104, 18355), (1380, 14684), (1840, 11013), (2760, 7342), (3671, 5520)]