18327780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1$

素因数の和:290

約数の個数: 144

約数和(自身を含む): 61326720

約数和(自身を除く): 42998940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 30, 36, 38, 45, 46, 57, 60, 69, 76, 90, 92, 95, 114, 115, 138, 171, 180, 190, 207, 228, 230, 233, 276, 285, 342, 345, 380, 414, 437, 460, 466, 570, 684, 690, 699, 828, 855, 874, 932, 1035, 1140, 1165, 1311, 1380, 1398, 1710, 1748, 2070, 2097, 2185, 2330, 2622, 2796, 3420, 3495, 3933, 4140, 4194, 4370, 4427, 4660, 5244, 5359, 6555, 6990, 7866, 8388, 8740, 8854, 10485, 10718, 13110, 13281, 13980, 15732, 16077, 17708, 19665, 20970, 21436, 22135, 26220, 26562, 26795, 32154, 39330, 39843, 41940, 44270, 48231, 53124, 53590, 64308, 66405, 78660, 79686, 80385, 88540, 96462, 101821, 107180, 132810, 159372, 160770, 192924, 199215, 203642, 241155, 265620, 305463, 321540, 398430, 407284, 482310, 509105, 610926, 796860, 916389, 964620, 1018210, 1221852, 1527315, 1832778, 2036420, 3054630, 3665556, 4581945, 6109260, 9163890, 18327780]

約数ペア:

[(1, 18327780), (2, 9163890), (3, 6109260), (4, 4581945), (5, 3665556), (6, 3054630), (9, 2036420), (10, 1832778), (12, 1527315), (15, 1221852), (18, 1018210), (19, 964620), (20, 916389), (23, 796860), (30, 610926), (36, 509105), (38, 482310), (45, 407284), (46, 398430), (57, 321540), (60, 305463), (69, 265620), (76, 241155), (90, 203642), (92, 199215), (95, 192924), (114, 160770), (115, 159372), (138, 132810), (171, 107180), (180, 101821), (190, 96462), (207, 88540), (228, 80385), (230, 79686), (233, 78660), (276, 66405), (285, 64308), (342, 53590), (345, 53124), (380, 48231), (414, 44270), (437, 41940), (460, 39843), (466, 39330), (570, 32154), (684, 26795), (690, 26562), (699, 26220), (828, 22135), (855, 21436), (874, 20970), (932, 19665), (1035, 17708), (1140, 16077), (1165, 15732), (1311, 13980), (1380, 13281), (1398, 13110), (1710, 10718), (1748, 10485), (2070, 8854), (2097, 8740), (2185, 8388), (2330, 7866), (2622, 6990), (2796, 6555), (3420, 5359), (3495, 5244), (3933, 4660), (4140, 4427), (4194, 4370)]