668340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 2096640

約数和(自身を除く): 1428300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 79, 90, 94, 141, 158, 180, 188, 235, 237, 282, 316, 395, 423, 470, 474, 564, 705, 711, 790, 846, 940, 948, 1185, 1410, 1422, 1580, 1692, 2115, 2370, 2820, 2844, 3555, 3713, 4230, 4740, 7110, 7426, 8460, 11139, 14220, 14852, 18565, 22278, 33417, 37130, 44556, 55695, 66834, 74260, 111390, 133668, 167085, 222780, 334170, 668340]

約数ペア:

[(1, 668340), (2, 334170), (3, 222780), (4, 167085), (5, 133668), (6, 111390), (9, 74260), (10, 66834), (12, 55695), (15, 44556), (18, 37130), (20, 33417), (30, 22278), (36, 18565), (45, 14852), (47, 14220), (60, 11139), (79, 8460), (90, 7426), (94, 7110), (141, 4740), (158, 4230), (180, 3713), (188, 3555), (235, 2844), (237, 2820), (282, 2370), (316, 2115), (395, 1692), (423, 1580), (470, 1422), (474, 1410), (564, 1185), (705, 948), (711, 940), (790, 846)]