281749930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{1531}}^1$

素因数の和:1795

約数の個数: 64

約数和(自身を含む): 635351040

約数和(自身を除く): 353601110

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 239, 385, 478, 770, 1195, 1531, 1673, 2390, 2629, 3062, 3346, 5258, 7655, 8365, 10717, 13145, 15310, 16730, 16841, 18403, 21434, 26290, 33682, 36806, 53585, 84205, 92015, 107170, 117887, 168410, 184030, 235774, 365909, 589435, 731818, 1178870, 1829545, 2561363, 3659090, 4024999, 5122726, 8049998, 12806815, 20124995, 25613630, 28174993, 40249990, 56349986, 140874965, 281749930]

約数ペア:

[(1, 281749930), (2, 140874965), (5, 56349986), (7, 40249990), (10, 28174993), (11, 25613630), (14, 20124995), (22, 12806815), (35, 8049998), (55, 5122726), (70, 4024999), (77, 3659090), (110, 2561363), (154, 1829545), (239, 1178870), (385, 731818), (478, 589435), (770, 365909), (1195, 235774), (1531, 184030), (1673, 168410), (2390, 117887), (2629, 107170), (3062, 92015), (3346, 84205), (5258, 53585), (7655, 36806), (8365, 33682), (10717, 26290), (13145, 21434), (15310, 18403), (16730, 16841)]