19946290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{953}}^1$

素因数の和:1003

約数の個数: 64

約数和(自身を含む): 46158336

約数和(自身を除く): 26212046

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 26, 35, 46, 65, 70, 91, 115, 130, 161, 182, 230, 299, 322, 455, 598, 805, 910, 953, 1495, 1610, 1906, 2093, 2990, 4186, 4765, 6671, 9530, 10465, 12389, 13342, 20930, 21919, 24778, 33355, 43838, 61945, 66710, 86723, 109595, 123890, 153433, 173446, 219190, 284947, 306866, 433615, 569894, 767165, 867230, 1424735, 1534330, 1994629, 2849470, 3989258, 9973145, 19946290]

約数ペア:

[(1, 19946290), (2, 9973145), (5, 3989258), (7, 2849470), (10, 1994629), (13, 1534330), (14, 1424735), (23, 867230), (26, 767165), (35, 569894), (46, 433615), (65, 306866), (70, 284947), (91, 219190), (115, 173446), (130, 153433), (161, 123890), (182, 109595), (230, 86723), (299, 66710), (322, 61945), (455, 43838), (598, 33355), (805, 24778), (910, 21919), (953, 20930), (1495, 13342), (1610, 12389), (1906, 10465), (2093, 9530), (2990, 6671), (4186, 4765)]