20173992076

素因数分解:

$2^2\times 7^2\times {\mathrm{359}}^1\times {\mathrm{409}}^1\times {\mathrm{701}}^1$

素因数の和:1487

約数の個数: 72

約数和(自身を含む): 41342464800

約数和(自身を除く): 21168472724

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 359, 409, 701, 718, 818, 1402, 1436, 1636, 2513, 2804, 2863, 4907, 5026, 5726, 9814, 10052, 11452, 17591, 19628, 20041, 34349, 35182, 40082, 68698, 70364, 80164, 137396, 146831, 251659, 286709, 293662, 503318, 573418, 587324, 1006636, 1027817, 1146836, 1761613, 2006963, 2055634, 3523226, 4013926, 4111268, 7046452, 7194719, 8027852, 12331291, 14048741, 14389438, 24662582, 28097482, 28778876, 49325164, 56194964, 102928531, 205857062, 411714124, 720499717, 1440999434, 2881998868, 5043498019, 10086996038, 20173992076]

約数ペア:

[(1, 20173992076), (2, 10086996038), (4, 5043498019), (7, 2881998868), (14, 1440999434), (28, 720499717), (49, 411714124), (98, 205857062), (196, 102928531), (359, 56194964), (409, 49325164), (701, 28778876), (718, 28097482), (818, 24662582), (1402, 14389438), (1436, 14048741), (1636, 12331291), (2513, 8027852), (2804, 7194719), (2863, 7046452), (4907, 4111268), (5026, 4013926), (5726, 3523226), (9814, 2055634), (10052, 2006963), (11452, 1761613), (17591, 1146836), (19628, 1027817), (20041, 1006636), (34349, 587324), (35182, 573418), (40082, 503318), (68698, 293662), (70364, 286709), (80164, 251659), (137396, 146831)]