720552008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1\times {\mathrm{499}}^1$

素因数の和:846

約数の個数: 64

約数和(自身を含む): 1506600000

約数和(自身を除く): 786047992

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 269, 488, 499, 538, 671, 998, 1076, 1342, 1996, 2152, 2684, 2959, 3992, 5368, 5489, 5918, 10978, 11836, 16409, 21956, 23672, 30439, 32818, 43912, 60878, 65636, 121756, 131272, 134231, 180499, 243512, 268462, 334829, 360998, 536924, 669658, 721996, 1073848, 1339316, 1443992, 1476541, 2678632, 2953082, 5906164, 8188091, 11812328, 16376182, 32752364, 65504728, 90069001, 180138002, 360276004, 720552008]

約数ペア:

[(1, 720552008), (2, 360276004), (4, 180138002), (8, 90069001), (11, 65504728), (22, 32752364), (44, 16376182), (61, 11812328), (88, 8188091), (122, 5906164), (244, 2953082), (269, 2678632), (488, 1476541), (499, 1443992), (538, 1339316), (671, 1073848), (998, 721996), (1076, 669658), (1342, 536924), (1996, 360998), (2152, 334829), (2684, 268462), (2959, 243512), (3992, 180499), (5368, 134231), (5489, 131272), (5918, 121756), (10978, 65636), (11836, 60878), (16409, 43912), (21956, 32818), (23672, 30439)]