18379920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:209

約数の個数: 160

約数和(自身を含む): 63245952

約数和(自身を除く): 44866032

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 43, 48, 52, 60, 65, 78, 80, 86, 104, 120, 129, 130, 137, 156, 172, 195, 208, 215, 240, 258, 260, 274, 312, 344, 390, 411, 430, 516, 520, 548, 559, 624, 645, 685, 688, 780, 822, 860, 1032, 1040, 1096, 1118, 1290, 1370, 1560, 1644, 1677, 1720, 1781, 2055, 2064, 2192, 2236, 2580, 2740, 2795, 3120, 3288, 3354, 3440, 3562, 4110, 4472, 5160, 5343, 5480, 5590, 5891, 6576, 6708, 7124, 8220, 8385, 8905, 8944, 10320, 10686, 10960, 11180, 11782, 13416, 14248, 16440, 16770, 17673, 17810, 21372, 22360, 23564, 26715, 26832, 28496, 29455, 32880, 33540, 35346, 35620, 42744, 44720, 47128, 53430, 58910, 67080, 70692, 71240, 76583, 85488, 88365, 94256, 106860, 117820, 134160, 141384, 142480, 153166, 176730, 213720, 229749, 235640, 282768, 306332, 353460, 382915, 427440, 459498, 471280, 612664, 706920, 765830, 918996, 1148745, 1225328, 1413840, 1531660, 1837992, 2297490, 3063320, 3675984, 4594980, 6126640, 9189960, 18379920]

約数ペア:

[(1, 18379920), (2, 9189960), (3, 6126640), (4, 4594980), (5, 3675984), (6, 3063320), (8, 2297490), (10, 1837992), (12, 1531660), (13, 1413840), (15, 1225328), (16, 1148745), (20, 918996), (24, 765830), (26, 706920), (30, 612664), (39, 471280), (40, 459498), (43, 427440), (48, 382915), (52, 353460), (60, 306332), (65, 282768), (78, 235640), (80, 229749), (86, 213720), (104, 176730), (120, 153166), (129, 142480), (130, 141384), (137, 134160), (156, 117820), (172, 106860), (195, 94256), (208, 88365), (215, 85488), (240, 76583), (258, 71240), (260, 70692), (274, 67080), (312, 58910), (344, 53430), (390, 47128), (411, 44720), (430, 42744), (516, 35620), (520, 35346), (548, 33540), (559, 32880), (624, 29455), (645, 28496), (685, 26832), (688, 26715), (780, 23564), (822, 22360), (860, 21372), (1032, 17810), (1040, 17673), (1096, 16770), (1118, 16440), (1290, 14248), (1370, 13416), (1560, 11782), (1644, 11180), (1677, 10960), (1720, 10686), (1781, 10320), (2055, 8944), (2064, 8905), (2192, 8385), (2236, 8220), (2580, 7124), (2740, 6708), (2795, 6576), (3120, 5891), (3288, 5590), (3354, 5480), (3440, 5343), (3562, 5160), (4110, 4472)]