20498370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 51546240

約数和(自身を除く): 31047870

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 59, 74, 111, 118, 177, 185, 222, 295, 313, 354, 370, 555, 590, 626, 885, 939, 1110, 1565, 1770, 1878, 2183, 3130, 4366, 4695, 6549, 9390, 10915, 11581, 13098, 18467, 21830, 23162, 32745, 34743, 36934, 55401, 57905, 65490, 69486, 92335, 110802, 115810, 173715, 184670, 277005, 347430, 554010, 683279, 1366558, 2049837, 3416395, 4099674, 6832790, 10249185, 20498370]

約数ペア:

[(1, 20498370), (2, 10249185), (3, 6832790), (5, 4099674), (6, 3416395), (10, 2049837), (15, 1366558), (30, 683279), (37, 554010), (59, 347430), (74, 277005), (111, 184670), (118, 173715), (177, 115810), (185, 110802), (222, 92335), (295, 69486), (313, 65490), (354, 57905), (370, 55401), (555, 36934), (590, 34743), (626, 32745), (885, 23162), (939, 21830), (1110, 18467), (1565, 13098), (1770, 11581), (1878, 10915), (2183, 9390), (3130, 6549), (4366, 4695)]