68704860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{23369}}^1$

素因数の和:23395

約数の個数: 72

約数和(自身を含む): 223791120

約数和(自身を除く): 155086260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 23369, 46738, 70107, 93476, 116845, 140214, 163583, 233690, 280428, 327166, 350535, 467380, 490749, 654332, 701070, 817915, 981498, 1145081, 1402140, 1635830, 1962996, 2290162, 2453745, 3271660, 3435243, 4580324, 4907490, 5725405, 6870486, 9814980, 11450810, 13740972, 17176215, 22901620, 34352430, 68704860]

約数ペア:

[(1, 68704860), (2, 34352430), (3, 22901620), (4, 17176215), (5, 13740972), (6, 11450810), (7, 9814980), (10, 6870486), (12, 5725405), (14, 4907490), (15, 4580324), (20, 3435243), (21, 3271660), (28, 2453745), (30, 2290162), (35, 1962996), (42, 1635830), (49, 1402140), (60, 1145081), (70, 981498), (84, 817915), (98, 701070), (105, 654332), (140, 490749), (147, 467380), (196, 350535), (210, 327166), (245, 280428), (294, 233690), (420, 163583), (490, 140214), (588, 116845), (735, 93476), (980, 70107), (1470, 46738), (2940, 23369)]