201438760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{1109}}^1$

素因数の和:1378

約数の個数: 64

約数和(自身を含む): 479520000

約数和(自身を除く): 278081240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 239, 380, 478, 760, 956, 1109, 1195, 1912, 2218, 2390, 4436, 4541, 4780, 5545, 8872, 9082, 9560, 11090, 18164, 21071, 22180, 22705, 36328, 42142, 44360, 45410, 84284, 90820, 105355, 168568, 181640, 210710, 265051, 421420, 530102, 842840, 1060204, 1325255, 2120408, 2650510, 5035969, 5301020, 10071938, 10602040, 20143876, 25179845, 40287752, 50359690, 100719380, 201438760]

約数ペア:

[(1, 201438760), (2, 100719380), (4, 50359690), (5, 40287752), (8, 25179845), (10, 20143876), (19, 10602040), (20, 10071938), (38, 5301020), (40, 5035969), (76, 2650510), (95, 2120408), (152, 1325255), (190, 1060204), (239, 842840), (380, 530102), (478, 421420), (760, 265051), (956, 210710), (1109, 181640), (1195, 168568), (1912, 105355), (2218, 90820), (2390, 84284), (4436, 45410), (4541, 44360), (4780, 42142), (5545, 36328), (8872, 22705), (9082, 22180), (9560, 21071), (11090, 18164)]