20395470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:289

約数の個数: 64

約数和(自身を含む): 50722560

約数和(自身を除く): 30327090

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 67, 73, 134, 139, 146, 201, 219, 278, 335, 365, 402, 417, 438, 670, 695, 730, 834, 1005, 1095, 1390, 2010, 2085, 2190, 4170, 4891, 9313, 9782, 10147, 14673, 18626, 20294, 24455, 27939, 29346, 30441, 46565, 48910, 50735, 55878, 60882, 73365, 93130, 101470, 139695, 146730, 152205, 279390, 304410, 679849, 1359698, 2039547, 3399245, 4079094, 6798490, 10197735, 20395470]

約数ペア:

[(1, 20395470), (2, 10197735), (3, 6798490), (5, 4079094), (6, 3399245), (10, 2039547), (15, 1359698), (30, 679849), (67, 304410), (73, 279390), (134, 152205), (139, 146730), (146, 139695), (201, 101470), (219, 93130), (278, 73365), (335, 60882), (365, 55878), (402, 50735), (417, 48910), (438, 46565), (670, 30441), (695, 29346), (730, 27939), (834, 24455), (1005, 20294), (1095, 18626), (1390, 14673), (2010, 10147), (2085, 9782), (2190, 9313), (4170, 4891)]