18982920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:295

約数の個数: 128

約数和(自身を含む): 63296640

約数和(自身を除く): 44313720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 73, 88, 110, 120, 132, 146, 165, 197, 219, 220, 264, 292, 330, 365, 394, 438, 440, 584, 591, 660, 730, 788, 803, 876, 985, 1095, 1182, 1320, 1460, 1576, 1606, 1752, 1970, 2167, 2190, 2364, 2409, 2920, 2955, 3212, 3940, 4015, 4334, 4380, 4728, 4818, 5910, 6424, 6501, 7880, 8030, 8668, 8760, 9636, 10835, 11820, 12045, 13002, 14381, 16060, 17336, 19272, 21670, 23640, 24090, 26004, 28762, 32120, 32505, 43143, 43340, 48180, 52008, 57524, 65010, 71905, 86286, 86680, 96360, 115048, 130020, 143810, 158191, 172572, 215715, 260040, 287620, 316382, 345144, 431430, 474573, 575240, 632764, 790955, 862860, 949146, 1265528, 1581910, 1725720, 1898292, 2372865, 3163820, 3796584, 4745730, 6327640, 9491460, 18982920]

約数ペア:

[(1, 18982920), (2, 9491460), (3, 6327640), (4, 4745730), (5, 3796584), (6, 3163820), (8, 2372865), (10, 1898292), (11, 1725720), (12, 1581910), (15, 1265528), (20, 949146), (22, 862860), (24, 790955), (30, 632764), (33, 575240), (40, 474573), (44, 431430), (55, 345144), (60, 316382), (66, 287620), (73, 260040), (88, 215715), (110, 172572), (120, 158191), (132, 143810), (146, 130020), (165, 115048), (197, 96360), (219, 86680), (220, 86286), (264, 71905), (292, 65010), (330, 57524), (365, 52008), (394, 48180), (438, 43340), (440, 43143), (584, 32505), (591, 32120), (660, 28762), (730, 26004), (788, 24090), (803, 23640), (876, 21670), (985, 19272), (1095, 17336), (1182, 16060), (1320, 14381), (1460, 13002), (1576, 12045), (1606, 11820), (1752, 10835), (1970, 9636), (2167, 8760), (2190, 8668), (2364, 8030), (2409, 7880), (2920, 6501), (2955, 6424), (3212, 5910), (3940, 4818), (4015, 4728), (4334, 4380)]