81312780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71327}}^1$

素因数の和:71358

約数の個数: 48

約数和(自身を含む): 239662080

約数和(自身を除く): 158349300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 71327, 142654, 213981, 285308, 356635, 427962, 713270, 855924, 1069905, 1355213, 1426540, 2139810, 2710426, 4065639, 4279620, 5420852, 6776065, 8131278, 13552130, 16262556, 20328195, 27104260, 40656390, 81312780]

約数ペア:

[(1, 81312780), (2, 40656390), (3, 27104260), (4, 20328195), (5, 16262556), (6, 13552130), (10, 8131278), (12, 6776065), (15, 5420852), (19, 4279620), (20, 4065639), (30, 2710426), (38, 2139810), (57, 1426540), (60, 1355213), (76, 1069905), (95, 855924), (114, 713270), (190, 427962), (228, 356635), (285, 285308), (380, 213981), (570, 142654), (1140, 71327)]