42640020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{26321}}^1$

素因数の和:26342

約数の個数: 60

約数和(自身を含む): 133768404

約数和(自身を除く): 91128384

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 26321, 52642, 78963, 105284, 131605, 157926, 236889, 263210, 315852, 394815, 473778, 526420, 710667, 789630, 947556, 1184445, 1421334, 1579260, 2132001, 2368890, 2842668, 3553335, 4264002, 4737780, 7106670, 8528004, 10660005, 14213340, 21320010, 42640020]

約数ペア:

[(1, 42640020), (2, 21320010), (3, 14213340), (4, 10660005), (5, 8528004), (6, 7106670), (9, 4737780), (10, 4264002), (12, 3553335), (15, 2842668), (18, 2368890), (20, 2132001), (27, 1579260), (30, 1421334), (36, 1184445), (45, 947556), (54, 789630), (60, 710667), (81, 526420), (90, 473778), (108, 394815), (135, 315852), (162, 263210), (180, 236889), (270, 157926), (324, 131605), (405, 105284), (540, 78963), (810, 52642), (1620, 26321)]