255024420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{86743}}^1$

素因数の和:86769

約数の個数: 72

約数和(自身を含む): 830660544

約数和(自身を除く): 575636124

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, 86743, 173486, 260229, 346972, 433715, 520458, 607201, 867430, 1040916, 1214402, 1301145, 1734860, 1821603, 2428804, 2602290, 3036005, 3643206, 4250407, 5204580, 6072010, 7286412, 8500814, 9108015, 12144020, 12751221, 17001628, 18216030, 21252035, 25502442, 36432060, 42504070, 51004884, 63756105, 85008140, 127512210, 255024420]

約数ペア:

[(1, 255024420), (2, 127512210), (3, 85008140), (4, 63756105), (5, 51004884), (6, 42504070), (7, 36432060), (10, 25502442), (12, 21252035), (14, 18216030), (15, 17001628), (20, 12751221), (21, 12144020), (28, 9108015), (30, 8500814), (35, 7286412), (42, 6072010), (49, 5204580), (60, 4250407), (70, 3643206), (84, 3036005), (98, 2602290), (105, 2428804), (140, 1821603), (147, 1734860), (196, 1301145), (210, 1214402), (245, 1040916), (294, 867430), (420, 607201), (490, 520458), (588, 433715), (735, 346972), (980, 260229), (1470, 173486), (2940, 86743)]