31431240

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:221

約数の個数: 160

約数和(自身を含む): 107811000

約数和(自身を除く): 76379760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 89, 90, 108, 109, 120, 135, 162, 178, 180, 216, 218, 267, 270, 324, 327, 356, 360, 405, 436, 445, 534, 540, 545, 648, 654, 712, 801, 810, 872, 890, 981, 1068, 1080, 1090, 1308, 1335, 1602, 1620, 1635, 1780, 1962, 2136, 2180, 2403, 2616, 2670, 2943, 3204, 3240, 3270, 3560, 3924, 4005, 4360, 4806, 4905, 5340, 5886, 6408, 6540, 7209, 7848, 8010, 8829, 9612, 9701, 9810, 10680, 11772, 12015, 13080, 14418, 14715, 16020, 17658, 19224, 19402, 19620, 23544, 24030, 28836, 29103, 29430, 32040, 35316, 36045, 38804, 39240, 44145, 48060, 48505, 57672, 58206, 58860, 70632, 72090, 77608, 87309, 88290, 96120, 97010, 116412, 117720, 144180, 145515, 174618, 176580, 194020, 232824, 261927, 288360, 291030, 349236, 353160, 388040, 436545, 523854, 582060, 698472, 785781, 873090, 1047708, 1164120, 1309635, 1571562, 1746180, 2095416, 2619270, 3143124, 3492360, 3928905, 5238540, 6286248, 7857810, 10477080, 15715620, 31431240]

約数ペア:

[(1, 31431240), (2, 15715620), (3, 10477080), (4, 7857810), (5, 6286248), (6, 5238540), (8, 3928905), (9, 3492360), (10, 3143124), (12, 2619270), (15, 2095416), (18, 1746180), (20, 1571562), (24, 1309635), (27, 1164120), (30, 1047708), (36, 873090), (40, 785781), (45, 698472), (54, 582060), (60, 523854), (72, 436545), (81, 388040), (89, 353160), (90, 349236), (108, 291030), (109, 288360), (120, 261927), (135, 232824), (162, 194020), (178, 176580), (180, 174618), (216, 145515), (218, 144180), (267, 117720), (270, 116412), (324, 97010), (327, 96120), (356, 88290), (360, 87309), (405, 77608), (436, 72090), (445, 70632), (534, 58860), (540, 58206), (545, 57672), (648, 48505), (654, 48060), (712, 44145), (801, 39240), (810, 38804), (872, 36045), (890, 35316), (981, 32040), (1068, 29430), (1080, 29103), (1090, 28836), (1308, 24030), (1335, 23544), (1602, 19620), (1620, 19402), (1635, 19224), (1780, 17658), (1962, 16020), (2136, 14715), (2180, 14418), (2403, 13080), (2616, 12015), (2670, 11772), (2943, 10680), (3204, 9810), (3240, 9701), (3270, 9612), (3560, 8829), (3924, 8010), (4005, 7848), (4360, 7209), (4806, 6540), (4905, 6408), (5340, 5886)]