28671370

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{643}}^1$

素因数の和:684

約数の個数: 64

約数和(自身を含む): 64915200

約数和(自身を除く): 36243830

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 343, 455, 490, 637, 643, 686, 910, 1274, 1286, 1715, 3185, 3215, 3430, 4459, 4501, 6370, 6430, 8359, 8918, 9002, 16718, 22295, 22505, 31507, 41795, 44590, 45010, 58513, 63014, 83590, 117026, 157535, 220549, 292565, 315070, 409591, 441098, 585130, 819182, 1102745, 2047955, 2205490, 2867137, 4095910, 5734274, 14335685, 28671370]

約数ペア:

[(1, 28671370), (2, 14335685), (5, 5734274), (7, 4095910), (10, 2867137), (13, 2205490), (14, 2047955), (26, 1102745), (35, 819182), (49, 585130), (65, 441098), (70, 409591), (91, 315070), (98, 292565), (130, 220549), (182, 157535), (245, 117026), (343, 83590), (455, 63014), (490, 58513), (637, 45010), (643, 44590), (686, 41795), (910, 31507), (1274, 22505), (1286, 22295), (1715, 16718), (3185, 9002), (3215, 8918), (3430, 8359), (4459, 6430), (4501, 6370)]