78320620

素因数分解:

$2^2\times 5^1\times 7^5\times {\mathrm{233}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 192707424

約数和(自身を除く): 114386804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 233, 245, 343, 466, 490, 686, 932, 980, 1165, 1372, 1631, 1715, 2330, 2401, 3262, 3430, 4660, 4802, 6524, 6860, 8155, 9604, 11417, 12005, 16310, 16807, 22834, 24010, 32620, 33614, 45668, 48020, 57085, 67228, 79919, 84035, 114170, 159838, 168070, 228340, 319676, 336140, 399595, 559433, 799190, 1118866, 1598380, 2237732, 2797165, 3916031, 5594330, 7832062, 11188660, 15664124, 19580155, 39160310, 78320620]

約数ペア:

[(1, 78320620), (2, 39160310), (4, 19580155), (5, 15664124), (7, 11188660), (10, 7832062), (14, 5594330), (20, 3916031), (28, 2797165), (35, 2237732), (49, 1598380), (70, 1118866), (98, 799190), (140, 559433), (196, 399595), (233, 336140), (245, 319676), (343, 228340), (466, 168070), (490, 159838), (686, 114170), (932, 84035), (980, 79919), (1165, 67228), (1372, 57085), (1631, 48020), (1715, 45668), (2330, 33614), (2401, 32620), (3262, 24010), (3430, 22834), (4660, 16807), (4802, 16310), (6524, 12005), (6860, 11417), (8155, 9604)]