990147378

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:520

約数の個数: 128

約数和(自身を含む): 2376843264

約数和(自身を除く): 1386695886

約数列:

[1, 2, 3, 6, 11, 22, 23, 31, 33, 46, 53, 62, 66, 69, 93, 106, 138, 159, 186, 253, 318, 341, 397, 506, 583, 682, 713, 759, 794, 1023, 1166, 1191, 1219, 1426, 1518, 1643, 1749, 2046, 2139, 2382, 2438, 3286, 3498, 3657, 4278, 4367, 4929, 7314, 7843, 8734, 9131, 9858, 12307, 13101, 13409, 15686, 18073, 18262, 21041, 23529, 24614, 26202, 26818, 27393, 36146, 36921, 37789, 40227, 42082, 47058, 54219, 54786, 63123, 73842, 75578, 80454, 100441, 108438, 113367, 126246, 135377, 200882, 226734, 231451, 270754, 283061, 301323, 406131, 415679, 462902, 483943, 566122, 602646, 652271, 694353, 812262, 831358, 849183, 967886, 1247037, 1304542, 1388706, 1451829, 1698366, 1956813, 2494074, 2903658, 3113671, 3913626, 5323373, 6227342, 7174981, 9341013, 10646746, 14349962, 15002233, 15970119, 18682026, 21524943, 30004466, 31940238, 43049886, 45006699, 90013398, 165024563, 330049126, 495073689, 990147378]

約数ペア:

[(1, 990147378), (2, 495073689), (3, 330049126), (6, 165024563), (11, 90013398), (22, 45006699), (23, 43049886), (31, 31940238), (33, 30004466), (46, 21524943), (53, 18682026), (62, 15970119), (66, 15002233), (69, 14349962), (93, 10646746), (106, 9341013), (138, 7174981), (159, 6227342), (186, 5323373), (253, 3913626), (318, 3113671), (341, 2903658), (397, 2494074), (506, 1956813), (583, 1698366), (682, 1451829), (713, 1388706), (759, 1304542), (794, 1247037), (1023, 967886), (1166, 849183), (1191, 831358), (1219, 812262), (1426, 694353), (1518, 652271), (1643, 602646), (1749, 566122), (2046, 483943), (2139, 462902), (2382, 415679), (2438, 406131), (3286, 301323), (3498, 283061), (3657, 270754), (4278, 231451), (4367, 226734), (4929, 200882), (7314, 135377), (7843, 126246), (8734, 113367), (9131, 108438), (9858, 100441), (12307, 80454), (13101, 75578), (13409, 73842), (15686, 63123), (18073, 54786), (18262, 54219), (21041, 47058), (23529, 42082), (24614, 40227), (26202, 37789), (26818, 36921), (27393, 36146)]