1038139540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 2270691360

約数和(自身を除く): 1232551820

約数列:

[1, 2, 4, 5, 10, 20, 43, 67, 86, 134, 172, 215, 268, 335, 419, 430, 670, 838, 860, 1340, 1676, 1849, 2095, 2881, 3698, 4190, 5762, 7396, 8380, 9245, 11524, 14405, 18017, 18490, 28073, 28810, 36034, 36980, 56146, 57620, 72068, 90085, 112292, 123883, 140365, 180170, 247766, 280730, 360340, 495532, 561460, 619415, 774731, 1207139, 1238830, 1549462, 2414278, 2477660, 3098924, 3873655, 4828556, 6035695, 7747310, 12071390, 15494620, 24142780, 51906977, 103813954, 207627908, 259534885, 519069770, 1038139540]

約数ペア:

[(1, 1038139540), (2, 519069770), (4, 259534885), (5, 207627908), (10, 103813954), (20, 51906977), (43, 24142780), (67, 15494620), (86, 12071390), (134, 7747310), (172, 6035695), (215, 4828556), (268, 3873655), (335, 3098924), (419, 2477660), (430, 2414278), (670, 1549462), (838, 1238830), (860, 1207139), (1340, 774731), (1676, 619415), (1849, 561460), (2095, 495532), (2881, 360340), (3698, 280730), (4190, 247766), (5762, 180170), (7396, 140365), (8380, 123883), (9245, 112292), (11524, 90085), (14405, 72068), (18017, 57620), (18490, 56146), (28073, 36980), (28810, 36034)]