64500860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{419}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 139708800

約数和(自身を除く): 75207940

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 179, 215, 358, 419, 430, 716, 838, 860, 895, 1676, 1790, 2095, 3580, 4190, 7697, 8380, 15394, 18017, 30788, 36034, 38485, 72068, 75001, 76970, 90085, 150002, 153940, 180170, 300004, 360340, 375005, 750010, 1500020, 3225043, 6450086, 12900172, 16125215, 32250430, 64500860]

約数ペア:

[(1, 64500860), (2, 32250430), (4, 16125215), (5, 12900172), (10, 6450086), (20, 3225043), (43, 1500020), (86, 750010), (172, 375005), (179, 360340), (215, 300004), (358, 180170), (419, 153940), (430, 150002), (716, 90085), (838, 76970), (860, 75001), (895, 72068), (1676, 38485), (1790, 36034), (2095, 30788), (3580, 18017), (4190, 15394), (7697, 8380)]