287440020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{228127}}^1$

素因数の和:228149

約数の個数: 72

約数和(自身を含む): 996463104

約数和(自身を除く): 709023084

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 228127, 456254, 684381, 912508, 1140635, 1368762, 1596889, 2053143, 2281270, 2737524, 3193778, 3421905, 4106286, 4562540, 4790667, 6387556, 6843810, 7984445, 8212572, 9581334, 10265715, 13687620, 14372001, 15968890, 19162668, 20531430, 23953335, 28744002, 31937780, 41062860, 47906670, 57488004, 71860005, 95813340, 143720010, 287440020]

約数ペア:

[(1, 287440020), (2, 143720010), (3, 95813340), (4, 71860005), (5, 57488004), (6, 47906670), (7, 41062860), (9, 31937780), (10, 28744002), (12, 23953335), (14, 20531430), (15, 19162668), (18, 15968890), (20, 14372001), (21, 13687620), (28, 10265715), (30, 9581334), (35, 8212572), (36, 7984445), (42, 6843810), (45, 6387556), (60, 4790667), (63, 4562540), (70, 4106286), (84, 3421905), (90, 3193778), (105, 2737524), (126, 2281270), (140, 2053143), (180, 1596889), (210, 1368762), (252, 1140635), (315, 912508), (420, 684381), (630, 456254), (1260, 228127)]