20858040

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:147

約数の個数: 256

約数和(自身を含む): 82944000

約数和(自身を除く): 62085960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 31, 35, 36, 40, 42, 45, 54, 56, 60, 62, 63, 70, 72, 84, 89, 90, 93, 105, 108, 120, 124, 126, 135, 140, 155, 168, 178, 180, 186, 189, 210, 216, 217, 248, 252, 267, 270, 279, 280, 310, 315, 356, 360, 372, 378, 420, 434, 445, 465, 504, 534, 540, 558, 620, 623, 630, 651, 712, 744, 756, 801, 837, 840, 868, 890, 930, 945, 1068, 1080, 1085, 1116, 1240, 1246, 1260, 1302, 1335, 1395, 1512, 1602, 1674, 1736, 1780, 1860, 1869, 1890, 1953, 2136, 2170, 2232, 2403, 2492, 2520, 2604, 2670, 2759, 2790, 3115, 3204, 3255, 3348, 3560, 3720, 3738, 3780, 3906, 4005, 4185, 4340, 4806, 4984, 5208, 5340, 5518, 5580, 5607, 5859, 6230, 6408, 6510, 6696, 7476, 7560, 7812, 8010, 8277, 8370, 8680, 9345, 9612, 9765, 10680, 11036, 11160, 11214, 11718, 12015, 12460, 13020, 13795, 14952, 15624, 16020, 16554, 16740, 16821, 18690, 19224, 19313, 19530, 22072, 22428, 23436, 24030, 24831, 24920, 26040, 27590, 28035, 29295, 32040, 33108, 33480, 33642, 37380, 38626, 39060, 41385, 44856, 46872, 48060, 49662, 55180, 56070, 57939, 58590, 66216, 67284, 74493, 74760, 77252, 78120, 82770, 84105, 96120, 96565, 99324, 110360, 112140, 115878, 117180, 124155, 134568, 148986, 154504, 165540, 168210, 173817, 193130, 198648, 224280, 231756, 234360, 248310, 289695, 297972, 331080, 336420, 347634, 372465, 386260, 463512, 496620, 521451, 579390, 595944, 672840, 695268, 744930, 772520, 869085, 993240, 1042902, 1158780, 1390536, 1489860, 1738170, 2085804, 2317560, 2607255, 2979720, 3476340, 4171608, 5214510, 6952680, 10429020, 20858040]

約数ペア:

[(1, 20858040), (2, 10429020), (3, 6952680), (4, 5214510), (5, 4171608), (6, 3476340), (7, 2979720), (8, 2607255), (9, 2317560), (10, 2085804), (12, 1738170), (14, 1489860), (15, 1390536), (18, 1158780), (20, 1042902), (21, 993240), (24, 869085), (27, 772520), (28, 744930), (30, 695268), (31, 672840), (35, 595944), (36, 579390), (40, 521451), (42, 496620), (45, 463512), (54, 386260), (56, 372465), (60, 347634), (62, 336420), (63, 331080), (70, 297972), (72, 289695), (84, 248310), (89, 234360), (90, 231756), (93, 224280), (105, 198648), (108, 193130), (120, 173817), (124, 168210), (126, 165540), (135, 154504), (140, 148986), (155, 134568), (168, 124155), (178, 117180), (180, 115878), (186, 112140), (189, 110360), (210, 99324), (216, 96565), (217, 96120), (248, 84105), (252, 82770), (267, 78120), (270, 77252), (279, 74760), (280, 74493), (310, 67284), (315, 66216), (356, 58590), (360, 57939), (372, 56070), (378, 55180), (420, 49662), (434, 48060), (445, 46872), (465, 44856), (504, 41385), (534, 39060), (540, 38626), (558, 37380), (620, 33642), (623, 33480), (630, 33108), (651, 32040), (712, 29295), (744, 28035), (756, 27590), (801, 26040), (837, 24920), (840, 24831), (868, 24030), (890, 23436), (930, 22428), (945, 22072), (1068, 19530), (1080, 19313), (1085, 19224), (1116, 18690), (1240, 16821), (1246, 16740), (1260, 16554), (1302, 16020), (1335, 15624), (1395, 14952), (1512, 13795), (1602, 13020), (1674, 12460), (1736, 12015), (1780, 11718), (1860, 11214), (1869, 11160), (1890, 11036), (1953, 10680), (2136, 9765), (2170, 9612), (2232, 9345), (2403, 8680), (2492, 8370), (2520, 8277), (2604, 8010), (2670, 7812), (2759, 7560), (2790, 7476), (3115, 6696), (3204, 6510), (3255, 6408), (3348, 6230), (3560, 5859), (3720, 5607), (3738, 5580), (3780, 5518), (3906, 5340), (4005, 5208), (4185, 4984), (4340, 4806)]