19701430

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1297}}^1$

素因数の和:1349

約数の個数: 48

約数和(自身を含む): 42615936

約数和(自身を除く): 22914506

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 49, 62, 70, 98, 155, 217, 245, 310, 434, 490, 1085, 1297, 1519, 2170, 2594, 3038, 6485, 7595, 9079, 12970, 15190, 18158, 40207, 45395, 63553, 80414, 90790, 127106, 201035, 281449, 317765, 402070, 562898, 635530, 1407245, 1970143, 2814490, 3940286, 9850715, 19701430]

約数ペア:

[(1, 19701430), (2, 9850715), (5, 3940286), (7, 2814490), (10, 1970143), (14, 1407245), (31, 635530), (35, 562898), (49, 402070), (62, 317765), (70, 281449), (98, 201035), (155, 127106), (217, 90790), (245, 80414), (310, 63553), (434, 45395), (490, 40207), (1085, 18158), (1297, 15190), (1519, 12970), (2170, 9079), (2594, 7595), (3038, 6485)]