1991471508

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{911}}^1$

素因数の和:1116

約数の個数: 144

約数和(自身を含む): 5660718336

約数和(自身を除く): 3669246828

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 173, 234, 243, 324, 346, 351, 468, 486, 519, 692, 702, 911, 972, 1038, 1053, 1404, 1557, 1822, 2076, 2106, 2249, 2733, 3114, 3159, 3644, 4212, 4498, 4671, 5466, 6228, 6318, 6747, 8199, 8996, 9342, 10932, 11843, 12636, 13494, 14013, 16398, 18684, 20241, 23686, 24597, 26988, 28026, 32796, 35529, 40482, 42039, 47372, 49194, 56052, 60723, 71058, 73791, 80964, 84078, 98388, 106587, 121446, 142116, 147582, 157603, 168156, 182169, 213174, 221373, 242892, 295164, 315206, 319761, 364338, 426348, 442746, 472809, 546507, 630412, 639522, 728676, 885492, 945618, 959283, 1093014, 1279044, 1418427, 1891236, 1918566, 2048839, 2186028, 2836854, 2877849, 3837132, 4097678, 4255281, 5673708, 5755698, 6146517, 8195356, 8510562, 11511396, 12293034, 12765843, 17021124, 18439551, 24586068, 25531686, 36879102, 38297529, 51063372, 55318653, 73758204, 76595058, 110637306, 153190116, 165955959, 221274612, 331911918, 497867877, 663823836, 995735754, 1991471508]

約数ペア:

[(1, 1991471508), (2, 995735754), (3, 663823836), (4, 497867877), (6, 331911918), (9, 221274612), (12, 165955959), (13, 153190116), (18, 110637306), (26, 76595058), (27, 73758204), (36, 55318653), (39, 51063372), (52, 38297529), (54, 36879102), (78, 25531686), (81, 24586068), (108, 18439551), (117, 17021124), (156, 12765843), (162, 12293034), (173, 11511396), (234, 8510562), (243, 8195356), (324, 6146517), (346, 5755698), (351, 5673708), (468, 4255281), (486, 4097678), (519, 3837132), (692, 2877849), (702, 2836854), (911, 2186028), (972, 2048839), (1038, 1918566), (1053, 1891236), (1404, 1418427), (1557, 1279044), (1822, 1093014), (2076, 959283), (2106, 945618), (2249, 885492), (2733, 728676), (3114, 639522), (3159, 630412), (3644, 546507), (4212, 472809), (4498, 442746), (4671, 426348), (5466, 364338), (6228, 319761), (6318, 315206), (6747, 295164), (8199, 242892), (8996, 221373), (9342, 213174), (10932, 182169), (11843, 168156), (12636, 157603), (13494, 147582), (14013, 142116), (16398, 121446), (18684, 106587), (20241, 98388), (23686, 84078), (24597, 80964), (26988, 73791), (28026, 71058), (32796, 60723), (35529, 56052), (40482, 49194), (42039, 47372)]