31211280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{647}}^1$

素因数の和:733

約数の個数: 120

約数和(自身を含む): 106546752

約数和(自身を除く): 75335472

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 67, 72, 80, 90, 120, 134, 144, 180, 201, 240, 268, 335, 360, 402, 536, 603, 647, 670, 720, 804, 1005, 1072, 1206, 1294, 1340, 1608, 1941, 2010, 2412, 2588, 2680, 3015, 3216, 3235, 3882, 4020, 4824, 5176, 5360, 5823, 6030, 6470, 7764, 8040, 9648, 9705, 10352, 11646, 12060, 12940, 15528, 16080, 19410, 23292, 24120, 25880, 29115, 31056, 38820, 43349, 46584, 48240, 51760, 58230, 77640, 86698, 93168, 116460, 130047, 155280, 173396, 216745, 232920, 260094, 346792, 390141, 433490, 465840, 520188, 650235, 693584, 780282, 866980, 1040376, 1300470, 1560564, 1733960, 1950705, 2080752, 2600940, 3121128, 3467920, 3901410, 5201880, 6242256, 7802820, 10403760, 15605640, 31211280]

約数ペア:

[(1, 31211280), (2, 15605640), (3, 10403760), (4, 7802820), (5, 6242256), (6, 5201880), (8, 3901410), (9, 3467920), (10, 3121128), (12, 2600940), (15, 2080752), (16, 1950705), (18, 1733960), (20, 1560564), (24, 1300470), (30, 1040376), (36, 866980), (40, 780282), (45, 693584), (48, 650235), (60, 520188), (67, 465840), (72, 433490), (80, 390141), (90, 346792), (120, 260094), (134, 232920), (144, 216745), (180, 173396), (201, 155280), (240, 130047), (268, 116460), (335, 93168), (360, 86698), (402, 77640), (536, 58230), (603, 51760), (647, 48240), (670, 46584), (720, 43349), (804, 38820), (1005, 31056), (1072, 29115), (1206, 25880), (1294, 24120), (1340, 23292), (1608, 19410), (1941, 16080), (2010, 15528), (2412, 12940), (2588, 12060), (2680, 11646), (3015, 10352), (3216, 9705), (3235, 9648), (3882, 8040), (4020, 7764), (4824, 6470), (5176, 6030), (5360, 5823)]