16904020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:437

約数の個数: 72

約数和(自身を含む): 42287616

約数和(自身を除く): 25383596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 367, 470, 490, 658, 734, 940, 980, 1316, 1468, 1645, 1835, 2303, 2569, 3290, 3670, 4606, 5138, 6580, 7340, 9212, 10276, 11515, 12845, 17249, 17983, 23030, 25690, 34498, 35966, 46060, 51380, 68996, 71932, 86245, 89915, 120743, 172490, 179830, 241486, 344980, 359660, 482972, 603715, 845201, 1207430, 1690402, 2414860, 3380804, 4226005, 8452010, 16904020]

約数ペア:

[(1, 16904020), (2, 8452010), (4, 4226005), (5, 3380804), (7, 2414860), (10, 1690402), (14, 1207430), (20, 845201), (28, 603715), (35, 482972), (47, 359660), (49, 344980), (70, 241486), (94, 179830), (98, 172490), (140, 120743), (188, 89915), (196, 86245), (235, 71932), (245, 68996), (329, 51380), (367, 46060), (470, 35966), (490, 34498), (658, 25690), (734, 23030), (940, 17983), (980, 17249), (1316, 12845), (1468, 11515), (1645, 10276), (1835, 9212), (2303, 7340), (2569, 6580), (3290, 5138), (3670, 4606)]