31291920

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1$

素因数の和:475

約数の個数: 200

約数和(自身を含む): 118831680

約数和(自身を除く): 87539760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 81, 88, 90, 99, 108, 110, 120, 132, 135, 144, 162, 165, 176, 180, 198, 216, 220, 240, 264, 270, 297, 324, 330, 360, 396, 405, 432, 439, 440, 495, 528, 540, 594, 648, 660, 720, 792, 810, 878, 880, 891, 990, 1080, 1188, 1296, 1317, 1320, 1485, 1584, 1620, 1756, 1782, 1980, 2160, 2195, 2376, 2634, 2640, 2970, 3240, 3512, 3564, 3951, 3960, 4390, 4455, 4752, 4829, 5268, 5940, 6480, 6585, 7024, 7128, 7902, 7920, 8780, 8910, 9658, 10536, 11853, 11880, 13170, 14256, 14487, 15804, 17560, 17820, 19316, 19755, 21072, 23706, 23760, 24145, 26340, 28974, 31608, 35120, 35559, 35640, 38632, 39510, 43461, 47412, 48290, 52680, 57948, 59265, 63216, 71118, 71280, 72435, 77264, 79020, 86922, 94824, 96580, 105360, 115896, 118530, 130383, 142236, 144870, 158040, 173844, 177795, 189648, 193160, 217305, 231792, 237060, 260766, 284472, 289740, 316080, 347688, 355590, 386320, 391149, 434610, 474120, 521532, 568944, 579480, 651915, 695376, 711180, 782298, 869220, 948240, 1043064, 1158960, 1303830, 1422360, 1564596, 1738440, 1955745, 2086128, 2607660, 2844720, 3129192, 3476880, 3911490, 5215320, 6258384, 7822980, 10430640, 15645960, 31291920]

約数ペア:

[(1, 31291920), (2, 15645960), (3, 10430640), (4, 7822980), (5, 6258384), (6, 5215320), (8, 3911490), (9, 3476880), (10, 3129192), (11, 2844720), (12, 2607660), (15, 2086128), (16, 1955745), (18, 1738440), (20, 1564596), (22, 1422360), (24, 1303830), (27, 1158960), (30, 1043064), (33, 948240), (36, 869220), (40, 782298), (44, 711180), (45, 695376), (48, 651915), (54, 579480), (55, 568944), (60, 521532), (66, 474120), (72, 434610), (80, 391149), (81, 386320), (88, 355590), (90, 347688), (99, 316080), (108, 289740), (110, 284472), (120, 260766), (132, 237060), (135, 231792), (144, 217305), (162, 193160), (165, 189648), (176, 177795), (180, 173844), (198, 158040), (216, 144870), (220, 142236), (240, 130383), (264, 118530), (270, 115896), (297, 105360), (324, 96580), (330, 94824), (360, 86922), (396, 79020), (405, 77264), (432, 72435), (439, 71280), (440, 71118), (495, 63216), (528, 59265), (540, 57948), (594, 52680), (648, 48290), (660, 47412), (720, 43461), (792, 39510), (810, 38632), (878, 35640), (880, 35559), (891, 35120), (990, 31608), (1080, 28974), (1188, 26340), (1296, 24145), (1317, 23760), (1320, 23706), (1485, 21072), (1584, 19755), (1620, 19316), (1756, 17820), (1782, 17560), (1980, 15804), (2160, 14487), (2195, 14256), (2376, 13170), (2634, 11880), (2640, 11853), (2970, 10536), (3240, 9658), (3512, 8910), (3564, 8780), (3951, 7920), (3960, 7902), (4390, 7128), (4455, 7024), (4752, 6585), (4829, 6480), (5268, 5940)]