18251880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1$

素因数の和:443

約数の個数: 128

約数和(自身を含む): 60652800

約数和(自身を除く): 42400920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 23, 24, 30, 34, 40, 46, 51, 60, 68, 69, 85, 92, 102, 115, 120, 136, 138, 170, 184, 204, 230, 255, 276, 340, 345, 389, 391, 408, 460, 510, 552, 680, 690, 778, 782, 920, 1020, 1167, 1173, 1380, 1556, 1564, 1945, 1955, 2040, 2334, 2346, 2760, 3112, 3128, 3890, 3910, 4668, 4692, 5835, 5865, 6613, 7780, 7820, 8947, 9336, 9384, 11670, 11730, 13226, 15560, 15640, 17894, 19839, 23340, 23460, 26452, 26841, 33065, 35788, 39678, 44735, 46680, 46920, 52904, 53682, 66130, 71576, 79356, 89470, 99195, 107364, 132260, 134205, 152099, 158712, 178940, 198390, 214728, 264520, 268410, 304198, 357880, 396780, 456297, 536820, 608396, 760495, 793560, 912594, 1073640, 1216792, 1520990, 1825188, 2281485, 3041980, 3650376, 4562970, 6083960, 9125940, 18251880]

約数ペア:

[(1, 18251880), (2, 9125940), (3, 6083960), (4, 4562970), (5, 3650376), (6, 3041980), (8, 2281485), (10, 1825188), (12, 1520990), (15, 1216792), (17, 1073640), (20, 912594), (23, 793560), (24, 760495), (30, 608396), (34, 536820), (40, 456297), (46, 396780), (51, 357880), (60, 304198), (68, 268410), (69, 264520), (85, 214728), (92, 198390), (102, 178940), (115, 158712), (120, 152099), (136, 134205), (138, 132260), (170, 107364), (184, 99195), (204, 89470), (230, 79356), (255, 71576), (276, 66130), (340, 53682), (345, 52904), (389, 46920), (391, 46680), (408, 44735), (460, 39678), (510, 35788), (552, 33065), (680, 26841), (690, 26452), (778, 23460), (782, 23340), (920, 19839), (1020, 17894), (1167, 15640), (1173, 15560), (1380, 13226), (1556, 11730), (1564, 11670), (1945, 9384), (1955, 9336), (2040, 8947), (2334, 7820), (2346, 7780), (2760, 6613), (3112, 5865), (3128, 5835), (3890, 4692), (3910, 4668)]