18813080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1$

素因数の和:82

約数の個数: 144

約数和(自身を含む): 52572240

約数和(自身を除く): 33759160

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 23, 26, 40, 44, 46, 52, 55, 65, 88, 92, 104, 110, 115, 121, 130, 143, 169, 184, 220, 230, 242, 253, 260, 286, 299, 338, 440, 460, 484, 506, 520, 572, 598, 605, 676, 715, 845, 920, 968, 1012, 1144, 1196, 1210, 1265, 1352, 1430, 1495, 1573, 1690, 1859, 2024, 2392, 2420, 2530, 2783, 2860, 2990, 3146, 3289, 3380, 3718, 3887, 4840, 5060, 5566, 5720, 5980, 6292, 6578, 6760, 7436, 7774, 7865, 9295, 10120, 11132, 11960, 12584, 13156, 13915, 14872, 15548, 15730, 16445, 18590, 19435, 20449, 22264, 26312, 27830, 31096, 31460, 32890, 36179, 37180, 38870, 40898, 42757, 55660, 62920, 65780, 72358, 74360, 77740, 81796, 85514, 102245, 111320, 131560, 144716, 155480, 163592, 171028, 180895, 204490, 213785, 289432, 342056, 361790, 408980, 427570, 470327, 723580, 817960, 855140, 940654, 1447160, 1710280, 1881308, 2351635, 3762616, 4703270, 9406540, 18813080]

約数ペア:

[(1, 18813080), (2, 9406540), (4, 4703270), (5, 3762616), (8, 2351635), (10, 1881308), (11, 1710280), (13, 1447160), (20, 940654), (22, 855140), (23, 817960), (26, 723580), (40, 470327), (44, 427570), (46, 408980), (52, 361790), (55, 342056), (65, 289432), (88, 213785), (92, 204490), (104, 180895), (110, 171028), (115, 163592), (121, 155480), (130, 144716), (143, 131560), (169, 111320), (184, 102245), (220, 85514), (230, 81796), (242, 77740), (253, 74360), (260, 72358), (286, 65780), (299, 62920), (338, 55660), (440, 42757), (460, 40898), (484, 38870), (506, 37180), (520, 36179), (572, 32890), (598, 31460), (605, 31096), (676, 27830), (715, 26312), (845, 22264), (920, 20449), (968, 19435), (1012, 18590), (1144, 16445), (1196, 15730), (1210, 15548), (1265, 14872), (1352, 13915), (1430, 13156), (1495, 12584), (1573, 11960), (1690, 11132), (1859, 10120), (2024, 9295), (2392, 7865), (2420, 7774), (2530, 7436), (2783, 6760), (2860, 6578), (2990, 6292), (3146, 5980), (3289, 5720), (3380, 5566), (3718, 5060), (3887, 4840)]