2557990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{367}}^1$

素因数の和:432

約数の個数: 32

約数和(自身を含む): 5007744

約数和(自身を除く): 2449754

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 170, 205, 367, 410, 697, 734, 1394, 1835, 3485, 3670, 6239, 6970, 12478, 15047, 30094, 31195, 62390, 75235, 150470, 255799, 511598, 1278995, 2557990]

約数ペア:

[(1, 2557990), (2, 1278995), (5, 511598), (10, 255799), (17, 150470), (34, 75235), (41, 62390), (82, 31195), (85, 30094), (170, 15047), (205, 12478), (367, 6970), (410, 6239), (697, 3670), (734, 3485), (1394, 1835)]