19865490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1$

素因数の和:323

約数の個数: 64

約数和(自身を含む): 49614336

約数和(自身を除く): 29748846

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 73, 94, 141, 146, 193, 219, 235, 282, 365, 386, 438, 470, 579, 705, 730, 965, 1095, 1158, 1410, 1930, 2190, 2895, 3431, 5790, 6862, 9071, 10293, 14089, 17155, 18142, 20586, 27213, 28178, 34310, 42267, 45355, 51465, 54426, 70445, 84534, 90710, 102930, 136065, 140890, 211335, 272130, 422670, 662183, 1324366, 1986549, 3310915, 3973098, 6621830, 9932745, 19865490]

約数ペア:

[(1, 19865490), (2, 9932745), (3, 6621830), (5, 3973098), (6, 3310915), (10, 1986549), (15, 1324366), (30, 662183), (47, 422670), (73, 272130), (94, 211335), (141, 140890), (146, 136065), (193, 102930), (219, 90710), (235, 84534), (282, 70445), (365, 54426), (386, 51465), (438, 45355), (470, 42267), (579, 34310), (705, 28178), (730, 27213), (965, 20586), (1095, 18142), (1158, 17155), (1410, 14089), (1930, 10293), (2190, 9071), (2895, 6862), (3431, 5790)]