642808190

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{71983}}^1$

素因数の和:72056

約数の個数: 32

約数和(自身を含む): 1243883520

約数和(自身を除く): 601075330

約数列:

[1, 2, 5, 10, 19, 38, 47, 94, 95, 190, 235, 470, 893, 1786, 4465, 8930, 71983, 143966, 359915, 719830, 1367677, 2735354, 3383201, 6766402, 6838385, 13676770, 16916005, 33832010, 64280819, 128561638, 321404095, 642808190]

約数ペア:

[(1, 642808190), (2, 321404095), (5, 128561638), (10, 64280819), (19, 33832010), (38, 16916005), (47, 13676770), (94, 6838385), (95, 6766402), (190, 3383201), (235, 2735354), (470, 1367677), (893, 719830), (1786, 359915), (4465, 143966), (8930, 71983)]