31820516

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:193

約数の個数: 96

約数和(自身を含む): 74511360

約数和(自身を除く): 42690844

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 43, 52, 76, 86, 91, 107, 133, 172, 182, 214, 247, 266, 301, 364, 428, 494, 532, 559, 602, 749, 817, 988, 1118, 1204, 1391, 1498, 1634, 1729, 2033, 2236, 2782, 2996, 3268, 3458, 3913, 4066, 4601, 5564, 5719, 6916, 7826, 8132, 9202, 9737, 10621, 11438, 14231, 15652, 18404, 19474, 21242, 22876, 26429, 28462, 32207, 38948, 42484, 52858, 56924, 59813, 64414, 74347, 87419, 105716, 119626, 128828, 148694, 174838, 185003, 239252, 297388, 349676, 370006, 418691, 611933, 740012, 837382, 1136447, 1223866, 1674764, 2272894, 2447732, 4545788, 7955129, 15910258, 31820516]

約数ペア:

[(1, 31820516), (2, 15910258), (4, 7955129), (7, 4545788), (13, 2447732), (14, 2272894), (19, 1674764), (26, 1223866), (28, 1136447), (38, 837382), (43, 740012), (52, 611933), (76, 418691), (86, 370006), (91, 349676), (107, 297388), (133, 239252), (172, 185003), (182, 174838), (214, 148694), (247, 128828), (266, 119626), (301, 105716), (364, 87419), (428, 74347), (494, 64414), (532, 59813), (559, 56924), (602, 52858), (749, 42484), (817, 38948), (988, 32207), (1118, 28462), (1204, 26429), (1391, 22876), (1498, 21242), (1634, 19474), (1729, 18404), (2033, 15652), (2236, 14231), (2782, 11438), (2996, 10621), (3268, 9737), (3458, 9202), (3913, 8132), (4066, 7826), (4601, 6916), (5564, 5719)]