72144800

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{991}}^1$

素因数の和:1031

約数の個数: 144

約数和(自身を含む): 216986112

約数和(自身を除く): 144841312

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 50, 52, 56, 65, 70, 80, 91, 100, 104, 112, 130, 140, 160, 175, 182, 200, 208, 224, 260, 280, 325, 350, 364, 400, 416, 455, 520, 560, 650, 700, 728, 800, 910, 991, 1040, 1120, 1300, 1400, 1456, 1820, 1982, 2080, 2275, 2600, 2800, 2912, 3640, 3964, 4550, 4955, 5200, 5600, 6937, 7280, 7928, 9100, 9910, 10400, 12883, 13874, 14560, 15856, 18200, 19820, 24775, 25766, 27748, 31712, 34685, 36400, 39640, 49550, 51532, 55496, 64415, 69370, 72800, 79280, 90181, 99100, 103064, 110992, 128830, 138740, 158560, 173425, 180362, 198200, 206128, 221984, 257660, 277480, 322075, 346850, 360724, 396400, 412256, 450905, 515320, 554960, 644150, 693700, 721448, 792800, 901810, 1030640, 1109920, 1288300, 1387400, 1442896, 1803620, 2061280, 2254525, 2576600, 2774800, 2885792, 3607240, 4509050, 5153200, 5549600, 7214480, 9018100, 10306400, 14428960, 18036200, 36072400, 72144800]

約数ペア:

[(1, 72144800), (2, 36072400), (4, 18036200), (5, 14428960), (7, 10306400), (8, 9018100), (10, 7214480), (13, 5549600), (14, 5153200), (16, 4509050), (20, 3607240), (25, 2885792), (26, 2774800), (28, 2576600), (32, 2254525), (35, 2061280), (40, 1803620), (50, 1442896), (52, 1387400), (56, 1288300), (65, 1109920), (70, 1030640), (80, 901810), (91, 792800), (100, 721448), (104, 693700), (112, 644150), (130, 554960), (140, 515320), (160, 450905), (175, 412256), (182, 396400), (200, 360724), (208, 346850), (224, 322075), (260, 277480), (280, 257660), (325, 221984), (350, 206128), (364, 198200), (400, 180362), (416, 173425), (455, 158560), (520, 138740), (560, 128830), (650, 110992), (700, 103064), (728, 99100), (800, 90181), (910, 79280), (991, 72800), (1040, 69370), (1120, 64415), (1300, 55496), (1400, 51532), (1456, 49550), (1820, 39640), (1982, 36400), (2080, 34685), (2275, 31712), (2600, 27748), (2800, 25766), (2912, 24775), (3640, 19820), (3964, 18200), (4550, 15856), (4955, 14560), (5200, 13874), (5600, 12883), (6937, 10400), (7280, 9910), (7928, 9100)]