261778972

素因数分解:

$2^2\times 7^3\times {\mathrm{13}}^2\times {\mathrm{1129}}^1$

素因数の和:1180

約数の個数: 72

約数和(自身を含む): 579012000

約数和(自身を除く): 317233028

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 169, 182, 196, 338, 343, 364, 637, 676, 686, 1129, 1183, 1274, 1372, 2258, 2366, 2548, 4459, 4516, 4732, 7903, 8281, 8918, 14677, 15806, 16562, 17836, 29354, 31612, 33124, 55321, 57967, 58708, 102739, 110642, 115934, 190801, 205478, 221284, 231868, 381602, 387247, 410956, 719173, 763204, 774494, 1335607, 1438346, 1548988, 2671214, 2876692, 5034211, 5342428, 9349249, 10068422, 18698498, 20136844, 37396996, 65444743, 130889486, 261778972]

約数ペア:

[(1, 261778972), (2, 130889486), (4, 65444743), (7, 37396996), (13, 20136844), (14, 18698498), (26, 10068422), (28, 9349249), (49, 5342428), (52, 5034211), (91, 2876692), (98, 2671214), (169, 1548988), (182, 1438346), (196, 1335607), (338, 774494), (343, 763204), (364, 719173), (637, 410956), (676, 387247), (686, 381602), (1129, 231868), (1183, 221284), (1274, 205478), (1372, 190801), (2258, 115934), (2366, 110642), (2548, 102739), (4459, 58708), (4516, 57967), (4732, 55321), (7903, 33124), (8281, 31612), (8918, 29354), (14677, 17836), (15806, 16562)]