18115720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:167

約数の個数: 128

約数和(自身を含む): 50803200

約数和(自身を除く): 32687480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 29, 35, 40, 46, 56, 58, 70, 92, 97, 115, 116, 140, 145, 161, 184, 194, 203, 230, 232, 280, 290, 322, 388, 406, 460, 485, 580, 644, 667, 679, 776, 805, 812, 920, 970, 1015, 1160, 1288, 1334, 1358, 1610, 1624, 1940, 2030, 2231, 2668, 2716, 2813, 3220, 3335, 3395, 3880, 4060, 4462, 4669, 5336, 5432, 5626, 6440, 6670, 6790, 8120, 8924, 9338, 11155, 11252, 13340, 13580, 14065, 15617, 17848, 18676, 19691, 22310, 22504, 23345, 26680, 27160, 28130, 31234, 37352, 39382, 44620, 46690, 56260, 62468, 64699, 78085, 78764, 89240, 93380, 98455, 112520, 124936, 129398, 156170, 157528, 186760, 196910, 258796, 312340, 323495, 393820, 452893, 517592, 624680, 646990, 787640, 905786, 1293980, 1811572, 2264465, 2587960, 3623144, 4528930, 9057860, 18115720]

約数ペア:

[(1, 18115720), (2, 9057860), (4, 4528930), (5, 3623144), (7, 2587960), (8, 2264465), (10, 1811572), (14, 1293980), (20, 905786), (23, 787640), (28, 646990), (29, 624680), (35, 517592), (40, 452893), (46, 393820), (56, 323495), (58, 312340), (70, 258796), (92, 196910), (97, 186760), (115, 157528), (116, 156170), (140, 129398), (145, 124936), (161, 112520), (184, 98455), (194, 93380), (203, 89240), (230, 78764), (232, 78085), (280, 64699), (290, 62468), (322, 56260), (388, 46690), (406, 44620), (460, 39382), (485, 37352), (580, 31234), (644, 28130), (667, 27160), (679, 26680), (776, 23345), (805, 22504), (812, 22310), (920, 19691), (970, 18676), (1015, 17848), (1160, 15617), (1288, 14065), (1334, 13580), (1358, 13340), (1610, 11252), (1624, 11155), (1940, 9338), (2030, 8924), (2231, 8120), (2668, 6790), (2716, 6670), (2813, 6440), (3220, 5626), (3335, 5432), (3395, 5336), (3880, 4669), (4060, 4462)]