1721477240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{84221}}^1$

素因数の和:84312

約数の個数: 64

約数和(自身を含む): 4487348160

約数和(自身を除く): 2765870920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2920, 4088, 5110, 10220, 20440, 84221, 168442, 336884, 421105, 589547, 673768, 842210, 1179094, 1684420, 2358188, 2947735, 3368840, 4716376, 5895470, 6148133, 11790940, 12296266, 23581880, 24592532, 30740665, 43036931, 49185064, 61481330, 86073862, 122962660, 172147724, 215184655, 245925320, 344295448, 430369310, 860738620, 1721477240]

約数ペア:

[(1, 1721477240), (2, 860738620), (4, 430369310), (5, 344295448), (7, 245925320), (8, 215184655), (10, 172147724), (14, 122962660), (20, 86073862), (28, 61481330), (35, 49185064), (40, 43036931), (56, 30740665), (70, 24592532), (73, 23581880), (140, 12296266), (146, 11790940), (280, 6148133), (292, 5895470), (365, 4716376), (511, 3368840), (584, 2947735), (730, 2358188), (1022, 1684420), (1460, 1179094), (2044, 842210), (2555, 673768), (2920, 589547), (4088, 421105), (5110, 336884), (10220, 168442), (20440, 84221)]