20872950

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:318

約数の個数: 96

約数和(自身を含む): 60043776

約数和(自身を除く): 39170826

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 103, 105, 150, 175, 193, 206, 210, 309, 350, 386, 515, 525, 579, 618, 721, 965, 1030, 1050, 1158, 1351, 1442, 1545, 1930, 2163, 2575, 2702, 2895, 3090, 3605, 4053, 4326, 4825, 5150, 5790, 6755, 7210, 7725, 8106, 9650, 10815, 13510, 14475, 15450, 18025, 19879, 20265, 21630, 28950, 33775, 36050, 39758, 40530, 54075, 59637, 67550, 99395, 101325, 108150, 119274, 139153, 198790, 202650, 278306, 298185, 417459, 496975, 596370, 695765, 834918, 993950, 1391530, 1490925, 2087295, 2981850, 3478825, 4174590, 6957650, 10436475, 20872950]

約数ペア:

[(1, 20872950), (2, 10436475), (3, 6957650), (5, 4174590), (6, 3478825), (7, 2981850), (10, 2087295), (14, 1490925), (15, 1391530), (21, 993950), (25, 834918), (30, 695765), (35, 596370), (42, 496975), (50, 417459), (70, 298185), (75, 278306), (103, 202650), (105, 198790), (150, 139153), (175, 119274), (193, 108150), (206, 101325), (210, 99395), (309, 67550), (350, 59637), (386, 54075), (515, 40530), (525, 39758), (579, 36050), (618, 33775), (721, 28950), (965, 21630), (1030, 20265), (1050, 19879), (1158, 18025), (1351, 15450), (1442, 14475), (1545, 13510), (1930, 10815), (2163, 9650), (2575, 8106), (2702, 7725), (2895, 7210), (3090, 6755), (3605, 5790), (4053, 5150), (4326, 4825)]