18972340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1361}}^1$

素因数の和:1428

約数の個数: 48

約数和(自身を含む): 43246224

約数和(自身を除く): 24273884

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1361, 1394, 2722, 2788, 3485, 5444, 6805, 6970, 13610, 13940, 23137, 27220, 46274, 55801, 92548, 111602, 115685, 223204, 231370, 279005, 462740, 558010, 948617, 1116020, 1897234, 3794468, 4743085, 9486170, 18972340]

約数ペア:

[(1, 18972340), (2, 9486170), (4, 4743085), (5, 3794468), (10, 1897234), (17, 1116020), (20, 948617), (34, 558010), (41, 462740), (68, 279005), (82, 231370), (85, 223204), (164, 115685), (170, 111602), (205, 92548), (340, 55801), (410, 46274), (697, 27220), (820, 23137), (1361, 13940), (1394, 13610), (2722, 6970), (2788, 6805), (3485, 5444)]