18493840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^3$

素因数の和:101

約数の個数: 80

約数和(自身を含む): 47318400

約数和(自身を除く): 28824560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 38, 40, 46, 76, 80, 92, 95, 115, 152, 184, 190, 230, 304, 368, 380, 437, 460, 529, 760, 874, 920, 1058, 1520, 1748, 1840, 2116, 2185, 2645, 3496, 4232, 4370, 5290, 6992, 8464, 8740, 10051, 10580, 12167, 17480, 20102, 21160, 24334, 34960, 40204, 42320, 48668, 50255, 60835, 80408, 97336, 100510, 121670, 160816, 194672, 201020, 231173, 243340, 402040, 462346, 486680, 804080, 924692, 973360, 1155865, 1849384, 2311730, 3698768, 4623460, 9246920, 18493840]

約数ペア:

[(1, 18493840), (2, 9246920), (4, 4623460), (5, 3698768), (8, 2311730), (10, 1849384), (16, 1155865), (19, 973360), (20, 924692), (23, 804080), (38, 486680), (40, 462346), (46, 402040), (76, 243340), (80, 231173), (92, 201020), (95, 194672), (115, 160816), (152, 121670), (184, 100510), (190, 97336), (230, 80408), (304, 60835), (368, 50255), (380, 48668), (437, 42320), (460, 40204), (529, 34960), (760, 24334), (874, 21160), (920, 20102), (1058, 17480), (1520, 12167), (1748, 10580), (1840, 10051), (2116, 8740), (2185, 8464), (2645, 6992), (3496, 5290), (4232, 4370)]