25690140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{20389}}^1$

素因数の和:20411

約数の個数: 72

約数和(自身を含む): 89063520

約数和(自身を除く): 63373380

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, 20389, 40778, 61167, 81556, 101945, 122334, 142723, 183501, 203890, 244668, 285446, 305835, 367002, 407780, 428169, 570892, 611670, 713615, 734004, 856338, 917505, 1223340, 1284507, 1427230, 1712676, 1835010, 2140845, 2569014, 2854460, 3670020, 4281690, 5138028, 6422535, 8563380, 12845070, 25690140]

約数ペア:

[(1, 25690140), (2, 12845070), (3, 8563380), (4, 6422535), (5, 5138028), (6, 4281690), (7, 3670020), (9, 2854460), (10, 2569014), (12, 2140845), (14, 1835010), (15, 1712676), (18, 1427230), (20, 1284507), (21, 1223340), (28, 917505), (30, 856338), (35, 734004), (36, 713615), (42, 611670), (45, 570892), (60, 428169), (63, 407780), (70, 367002), (84, 305835), (90, 285446), (105, 244668), (126, 203890), (140, 183501), (180, 142723), (210, 122334), (252, 101945), (315, 81556), (420, 61167), (630, 40778), (1260, 20389)]