61991280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:248

約数の個数: 240

約数和(自身を含む): 231547680

約数和(自身を除く): 169556400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 37, 39, 40, 45, 48, 52, 60, 65, 72, 74, 78, 80, 90, 104, 111, 117, 120, 130, 144, 148, 156, 179, 180, 185, 195, 208, 222, 234, 240, 260, 296, 312, 333, 358, 360, 370, 390, 444, 468, 481, 520, 537, 555, 585, 592, 624, 666, 716, 720, 740, 780, 888, 895, 936, 962, 1040, 1074, 1110, 1170, 1332, 1432, 1443, 1480, 1560, 1611, 1665, 1776, 1790, 1872, 1924, 2148, 2220, 2327, 2340, 2405, 2664, 2685, 2864, 2886, 2960, 3120, 3222, 3330, 3580, 3848, 4296, 4329, 4440, 4654, 4680, 4810, 5328, 5370, 5772, 6444, 6623, 6660, 6981, 7160, 7215, 7696, 8055, 8592, 8658, 8880, 9308, 9360, 9620, 10740, 11544, 11635, 12888, 13246, 13320, 13962, 14320, 14430, 16110, 17316, 18616, 19240, 19869, 20943, 21480, 21645, 23088, 23270, 25776, 26492, 26640, 27924, 28860, 32220, 33115, 34632, 34905, 37232, 38480, 39738, 41886, 42960, 43290, 46540, 52984, 55848, 57720, 59607, 64440, 66230, 69264, 69810, 79476, 83772, 86099, 86580, 93080, 99345, 104715, 105968, 111696, 115440, 119214, 128880, 132460, 139620, 158952, 167544, 172198, 173160, 186160, 198690, 209430, 238428, 258297, 264920, 279240, 298035, 317904, 335088, 344396, 346320, 397380, 418860, 430495, 476856, 516594, 529840, 558480, 596070, 688792, 774891, 794760, 837720, 860990, 953712, 1033188, 1192140, 1291485, 1377584, 1549782, 1589520, 1675440, 1721980, 2066376, 2384280, 2582970, 3099564, 3443960, 3874455, 4132752, 4768560, 5165940, 6199128, 6887920, 7748910, 10331880, 12398256, 15497820, 20663760, 30995640, 61991280]

約数ペア:

[(1, 61991280), (2, 30995640), (3, 20663760), (4, 15497820), (5, 12398256), (6, 10331880), (8, 7748910), (9, 6887920), (10, 6199128), (12, 5165940), (13, 4768560), (15, 4132752), (16, 3874455), (18, 3443960), (20, 3099564), (24, 2582970), (26, 2384280), (30, 2066376), (36, 1721980), (37, 1675440), (39, 1589520), (40, 1549782), (45, 1377584), (48, 1291485), (52, 1192140), (60, 1033188), (65, 953712), (72, 860990), (74, 837720), (78, 794760), (80, 774891), (90, 688792), (104, 596070), (111, 558480), (117, 529840), (120, 516594), (130, 476856), (144, 430495), (148, 418860), (156, 397380), (179, 346320), (180, 344396), (185, 335088), (195, 317904), (208, 298035), (222, 279240), (234, 264920), (240, 258297), (260, 238428), (296, 209430), (312, 198690), (333, 186160), (358, 173160), (360, 172198), (370, 167544), (390, 158952), (444, 139620), (468, 132460), (481, 128880), (520, 119214), (537, 115440), (555, 111696), (585, 105968), (592, 104715), (624, 99345), (666, 93080), (716, 86580), (720, 86099), (740, 83772), (780, 79476), (888, 69810), (895, 69264), (936, 66230), (962, 64440), (1040, 59607), (1074, 57720), (1110, 55848), (1170, 52984), (1332, 46540), (1432, 43290), (1443, 42960), (1480, 41886), (1560, 39738), (1611, 38480), (1665, 37232), (1776, 34905), (1790, 34632), (1872, 33115), (1924, 32220), (2148, 28860), (2220, 27924), (2327, 26640), (2340, 26492), (2405, 25776), (2664, 23270), (2685, 23088), (2864, 21645), (2886, 21480), (2960, 20943), (3120, 19869), (3222, 19240), (3330, 18616), (3580, 17316), (3848, 16110), (4296, 14430), (4329, 14320), (4440, 13962), (4654, 13320), (4680, 13246), (4810, 12888), (5328, 11635), (5370, 11544), (5772, 10740), (6444, 9620), (6623, 9360), (6660, 9308), (6981, 8880), (7160, 8658), (7215, 8592), (7696, 8055)]