123478140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{7121}}^1$

素因数の和:7167

約数の個数: 72

約数和(自身を含む): 367324272

約数和(自身を除く): 243846132

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 289, 340, 510, 578, 867, 1020, 1156, 1445, 1734, 2890, 3468, 4335, 5780, 7121, 8670, 14242, 17340, 21363, 28484, 35605, 42726, 71210, 85452, 106815, 121057, 142420, 213630, 242114, 363171, 427260, 484228, 605285, 726342, 1210570, 1452684, 1815855, 2057969, 2421140, 3631710, 4115938, 6173907, 7263420, 8231876, 10289845, 12347814, 20579690, 24695628, 30869535, 41159380, 61739070, 123478140]

約数ペア:

[(1, 123478140), (2, 61739070), (3, 41159380), (4, 30869535), (5, 24695628), (6, 20579690), (10, 12347814), (12, 10289845), (15, 8231876), (17, 7263420), (20, 6173907), (30, 4115938), (34, 3631710), (51, 2421140), (60, 2057969), (68, 1815855), (85, 1452684), (102, 1210570), (170, 726342), (204, 605285), (255, 484228), (289, 427260), (340, 363171), (510, 242114), (578, 213630), (867, 142420), (1020, 121057), (1156, 106815), (1445, 85452), (1734, 71210), (2890, 42726), (3468, 35605), (4335, 28484), (5780, 21363), (7121, 17340), (8670, 14242)]