20417970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{317}}^1$

素因数の和:459

約数の個数: 64

約数和(自身を含む): 52202880

約数和(自身を除く): 31784910

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 113, 114, 190, 226, 285, 317, 339, 565, 570, 634, 678, 951, 1130, 1585, 1695, 1902, 2147, 3170, 3390, 4294, 4755, 6023, 6441, 9510, 10735, 12046, 12882, 18069, 21470, 30115, 32205, 35821, 36138, 60230, 64410, 71642, 90345, 107463, 179105, 180690, 214926, 358210, 537315, 680599, 1074630, 1361198, 2041797, 3402995, 4083594, 6805990, 10208985, 20417970]

約数ペア:

[(1, 20417970), (2, 10208985), (3, 6805990), (5, 4083594), (6, 3402995), (10, 2041797), (15, 1361198), (19, 1074630), (30, 680599), (38, 537315), (57, 358210), (95, 214926), (113, 180690), (114, 179105), (190, 107463), (226, 90345), (285, 71642), (317, 64410), (339, 60230), (565, 36138), (570, 35821), (634, 32205), (678, 30115), (951, 21470), (1130, 18069), (1585, 12882), (1695, 12046), (1902, 10735), (2147, 9510), (3170, 6441), (3390, 6023), (4294, 4755)]