18366920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{19}}^1$

素因数の和:80

約数の個数: 128

約数和(自身を含む): 51408000

約数和(自身を除く): 33041080

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 19, 20, 22, 26, 38, 40, 44, 52, 55, 65, 76, 88, 95, 104, 110, 130, 143, 152, 169, 190, 209, 220, 247, 260, 286, 338, 380, 418, 440, 494, 520, 572, 676, 715, 760, 836, 845, 988, 1045, 1144, 1235, 1352, 1430, 1672, 1690, 1859, 1976, 2090, 2197, 2470, 2717, 2860, 3211, 3380, 3718, 4180, 4394, 4940, 5434, 5720, 6422, 6760, 7436, 8360, 8788, 9295, 9880, 10868, 10985, 12844, 13585, 14872, 16055, 17576, 18590, 21736, 21970, 24167, 25688, 27170, 32110, 35321, 37180, 41743, 43940, 48334, 54340, 64220, 70642, 74360, 83486, 87880, 96668, 108680, 120835, 128440, 141284, 166972, 176605, 193336, 208715, 241670, 282568, 333944, 353210, 417430, 459173, 483340, 706420, 834860, 918346, 966680, 1412840, 1669720, 1836692, 2295865, 3673384, 4591730, 9183460, 18366920]

約数ペア:

[(1, 18366920), (2, 9183460), (4, 4591730), (5, 3673384), (8, 2295865), (10, 1836692), (11, 1669720), (13, 1412840), (19, 966680), (20, 918346), (22, 834860), (26, 706420), (38, 483340), (40, 459173), (44, 417430), (52, 353210), (55, 333944), (65, 282568), (76, 241670), (88, 208715), (95, 193336), (104, 176605), (110, 166972), (130, 141284), (143, 128440), (152, 120835), (169, 108680), (190, 96668), (209, 87880), (220, 83486), (247, 74360), (260, 70642), (286, 64220), (338, 54340), (380, 48334), (418, 43940), (440, 41743), (494, 37180), (520, 35321), (572, 32110), (676, 27170), (715, 25688), (760, 24167), (836, 21970), (845, 21736), (988, 18590), (1045, 17576), (1144, 16055), (1235, 14872), (1352, 13585), (1430, 12844), (1672, 10985), (1690, 10868), (1859, 9880), (1976, 9295), (2090, 8788), (2197, 8360), (2470, 7436), (2717, 6760), (2860, 6422), (3211, 5720), (3380, 5434), (3718, 4940), (4180, 4394)]