221286620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{2593}}^1$

素因数の和:2870

約数の個数: 48

約数和(自身を含む): 494188128

約数和(自身を除く): 272901508

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 251, 340, 502, 1004, 1255, 2510, 2593, 4267, 5020, 5186, 8534, 10372, 12965, 17068, 21335, 25930, 42670, 44081, 51860, 85340, 88162, 176324, 220405, 440810, 650843, 881620, 1301686, 2603372, 3254215, 6508430, 11064331, 13016860, 22128662, 44257324, 55321655, 110643310, 221286620]

約数ペア:

[(1, 221286620), (2, 110643310), (4, 55321655), (5, 44257324), (10, 22128662), (17, 13016860), (20, 11064331), (34, 6508430), (68, 3254215), (85, 2603372), (170, 1301686), (251, 881620), (340, 650843), (502, 440810), (1004, 220405), (1255, 176324), (2510, 88162), (2593, 85340), (4267, 51860), (5020, 44081), (5186, 42670), (8534, 25930), (10372, 21335), (12965, 17068)]