257790636

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{1319}}^1$

素因数の和:1479

約数の個数: 72

約数和(自身を含む): 670269600

約数和(自身を除く): 412478964

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 89, 122, 178, 183, 244, 267, 356, 366, 534, 549, 732, 801, 1068, 1098, 1319, 1602, 2196, 2638, 3204, 3957, 5276, 5429, 7914, 10858, 11871, 15828, 16287, 21716, 23742, 32574, 47484, 48861, 65148, 80459, 97722, 117391, 160918, 195444, 234782, 241377, 321836, 352173, 469564, 482754, 704346, 724131, 965508, 1056519, 1408692, 1448262, 2113038, 2896524, 4226076, 7160851, 14321702, 21482553, 28643404, 42965106, 64447659, 85930212, 128895318, 257790636]

約数ペア:

[(1, 257790636), (2, 128895318), (3, 85930212), (4, 64447659), (6, 42965106), (9, 28643404), (12, 21482553), (18, 14321702), (36, 7160851), (61, 4226076), (89, 2896524), (122, 2113038), (178, 1448262), (183, 1408692), (244, 1056519), (267, 965508), (356, 724131), (366, 704346), (534, 482754), (549, 469564), (732, 352173), (801, 321836), (1068, 241377), (1098, 234782), (1319, 195444), (1602, 160918), (2196, 117391), (2638, 97722), (3204, 80459), (3957, 65148), (5276, 48861), (5429, 47484), (7914, 32574), (10858, 23742), (11871, 21716), (15828, 16287)]