20354880

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1$

素因数の和:273

約数の個数: 224

約数和(自身を含む): 79881984

約数和(自身を除く): 59527104

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 52, 56, 60, 64, 65, 70, 78, 80, 84, 91, 96, 104, 105, 112, 120, 130, 140, 156, 160, 168, 182, 192, 195, 208, 210, 224, 233, 240, 260, 273, 280, 312, 320, 336, 364, 390, 416, 420, 448, 455, 466, 480, 520, 546, 560, 624, 672, 699, 728, 780, 832, 840, 910, 932, 960, 1040, 1092, 1120, 1165, 1248, 1344, 1365, 1398, 1456, 1560, 1631, 1680, 1820, 1864, 2080, 2184, 2240, 2330, 2496, 2730, 2796, 2912, 3029, 3120, 3262, 3360, 3495, 3640, 3728, 4160, 4368, 4660, 4893, 5460, 5592, 5824, 6058, 6240, 6524, 6720, 6990, 7280, 7456, 8155, 8736, 9087, 9320, 9786, 10920, 11184, 12116, 12480, 13048, 13980, 14560, 14912, 15145, 16310, 17472, 18174, 18640, 19572, 21203, 21840, 22368, 24232, 24465, 26096, 27960, 29120, 30290, 32620, 36348, 37280, 39144, 42406, 43680, 44736, 45435, 48464, 48930, 52192, 55920, 60580, 63609, 65240, 72696, 74560, 78288, 84812, 87360, 90870, 96928, 97860, 104384, 106015, 111840, 121160, 127218, 130480, 145392, 156576, 169624, 181740, 193856, 195720, 212030, 223680, 242320, 254436, 260960, 290784, 313152, 318045, 339248, 363480, 391440, 424060, 484640, 508872, 521920, 581568, 636090, 678496, 726960, 782880, 848120, 969280, 1017744, 1272180, 1356992, 1453920, 1565760, 1696240, 2035488, 2544360, 2907840, 3392480, 4070976, 5088720, 6784960, 10177440, 20354880]

約数ペア:

[(1, 20354880), (2, 10177440), (3, 6784960), (4, 5088720), (5, 4070976), (6, 3392480), (7, 2907840), (8, 2544360), (10, 2035488), (12, 1696240), (13, 1565760), (14, 1453920), (15, 1356992), (16, 1272180), (20, 1017744), (21, 969280), (24, 848120), (26, 782880), (28, 726960), (30, 678496), (32, 636090), (35, 581568), (39, 521920), (40, 508872), (42, 484640), (48, 424060), (52, 391440), (56, 363480), (60, 339248), (64, 318045), (65, 313152), (70, 290784), (78, 260960), (80, 254436), (84, 242320), (91, 223680), (96, 212030), (104, 195720), (105, 193856), (112, 181740), (120, 169624), (130, 156576), (140, 145392), (156, 130480), (160, 127218), (168, 121160), (182, 111840), (192, 106015), (195, 104384), (208, 97860), (210, 96928), (224, 90870), (233, 87360), (240, 84812), (260, 78288), (273, 74560), (280, 72696), (312, 65240), (320, 63609), (336, 60580), (364, 55920), (390, 52192), (416, 48930), (420, 48464), (448, 45435), (455, 44736), (466, 43680), (480, 42406), (520, 39144), (546, 37280), (560, 36348), (624, 32620), (672, 30290), (699, 29120), (728, 27960), (780, 26096), (832, 24465), (840, 24232), (910, 22368), (932, 21840), (960, 21203), (1040, 19572), (1092, 18640), (1120, 18174), (1165, 17472), (1248, 16310), (1344, 15145), (1365, 14912), (1398, 14560), (1456, 13980), (1560, 13048), (1631, 12480), (1680, 12116), (1820, 11184), (1864, 10920), (2080, 9786), (2184, 9320), (2240, 9087), (2330, 8736), (2496, 8155), (2730, 7456), (2796, 7280), (2912, 6990), (3029, 6720), (3120, 6524), (3262, 6240), (3360, 6058), (3495, 5824), (3640, 5592), (3728, 5460), (4160, 4893), (4368, 4660)]