31236840

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:365

約数の個数: 160

約数和(自身を含む): 108725760

約数和(自身を除く): 77488920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 81, 90, 93, 108, 120, 124, 135, 155, 162, 180, 186, 216, 248, 270, 279, 310, 311, 324, 360, 372, 405, 465, 540, 558, 620, 622, 648, 744, 810, 837, 930, 933, 1080, 1116, 1240, 1244, 1395, 1555, 1620, 1674, 1860, 1866, 2232, 2488, 2511, 2790, 2799, 3110, 3240, 3348, 3720, 3732, 4185, 4665, 5022, 5580, 5598, 6220, 6696, 7464, 8370, 8397, 9330, 9641, 10044, 11160, 11196, 12440, 12555, 13995, 16740, 16794, 18660, 19282, 20088, 22392, 25110, 25191, 27990, 28923, 33480, 33588, 37320, 38564, 41985, 48205, 50220, 50382, 55980, 57846, 67176, 77128, 83970, 86769, 96410, 100440, 100764, 111960, 115692, 125955, 144615, 167940, 173538, 192820, 201528, 231384, 251910, 260307, 289230, 335880, 347076, 385640, 433845, 503820, 520614, 578460, 694152, 780921, 867690, 1007640, 1041228, 1156920, 1301535, 1561842, 1735380, 2082456, 2603070, 3123684, 3470760, 3904605, 5206140, 6247368, 7809210, 10412280, 15618420, 31236840]

約数ペア:

[(1, 31236840), (2, 15618420), (3, 10412280), (4, 7809210), (5, 6247368), (6, 5206140), (8, 3904605), (9, 3470760), (10, 3123684), (12, 2603070), (15, 2082456), (18, 1735380), (20, 1561842), (24, 1301535), (27, 1156920), (30, 1041228), (31, 1007640), (36, 867690), (40, 780921), (45, 694152), (54, 578460), (60, 520614), (62, 503820), (72, 433845), (81, 385640), (90, 347076), (93, 335880), (108, 289230), (120, 260307), (124, 251910), (135, 231384), (155, 201528), (162, 192820), (180, 173538), (186, 167940), (216, 144615), (248, 125955), (270, 115692), (279, 111960), (310, 100764), (311, 100440), (324, 96410), (360, 86769), (372, 83970), (405, 77128), (465, 67176), (540, 57846), (558, 55980), (620, 50382), (622, 50220), (648, 48205), (744, 41985), (810, 38564), (837, 37320), (930, 33588), (933, 33480), (1080, 28923), (1116, 27990), (1240, 25191), (1244, 25110), (1395, 22392), (1555, 20088), (1620, 19282), (1674, 18660), (1860, 16794), (1866, 16740), (2232, 13995), (2488, 12555), (2511, 12440), (2790, 11196), (2799, 11160), (3110, 10044), (3240, 9641), (3348, 9330), (3720, 8397), (3732, 8370), (4185, 7464), (4665, 6696), (5022, 6220), (5580, 5598)]