290015908

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2647}}^1$

素因数の和:2721

約数の個数: 72

約数和(自身を含む): 650836032

約数和(自身を除く): 360820124

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 49, 52, 86, 91, 98, 172, 182, 196, 301, 364, 559, 602, 637, 1118, 1204, 1274, 2107, 2236, 2548, 2647, 3913, 4214, 5294, 7826, 8428, 10588, 15652, 18529, 27391, 34411, 37058, 54782, 68822, 74116, 109564, 113821, 129703, 137644, 227642, 240877, 259406, 455284, 481754, 518812, 796747, 963508, 1479673, 1593494, 1686139, 2959346, 3186988, 3372278, 5577229, 5918692, 6744556, 10357711, 11154458, 20715422, 22308916, 41430844, 72503977, 145007954, 290015908]

約数ペア:

[(1, 290015908), (2, 145007954), (4, 72503977), (7, 41430844), (13, 22308916), (14, 20715422), (26, 11154458), (28, 10357711), (43, 6744556), (49, 5918692), (52, 5577229), (86, 3372278), (91, 3186988), (98, 2959346), (172, 1686139), (182, 1593494), (196, 1479673), (301, 963508), (364, 796747), (559, 518812), (602, 481754), (637, 455284), (1118, 259406), (1204, 240877), (1274, 227642), (2107, 137644), (2236, 129703), (2548, 113821), (2647, 109564), (3913, 74116), (4214, 68822), (5294, 54782), (7826, 37058), (8428, 34411), (10588, 27391), (15652, 18529)]