640890240

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{541}}^1\times {\mathrm{617}}^1$

素因数の和:1180

約数の個数: 128

約数和(自身を含む): 2049930720

約数和(自身を除く): 1409040480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 541, 617, 640, 960, 1082, 1234, 1623, 1851, 1920, 2164, 2468, 2705, 3085, 3246, 3702, 4328, 4936, 5410, 6170, 6492, 7404, 8115, 8656, 9255, 9872, 10820, 12340, 12984, 14808, 16230, 17312, 18510, 19744, 21640, 24680, 25968, 29616, 32460, 34624, 37020, 39488, 43280, 49360, 51936, 59232, 64920, 69248, 74040, 78976, 86560, 98720, 103872, 118464, 129840, 148080, 173120, 197440, 207744, 236928, 259680, 296160, 333797, 346240, 394880, 519360, 592320, 667594, 1001391, 1038720, 1184640, 1335188, 1668985, 2002782, 2670376, 3337970, 4005564, 5006955, 5340752, 6675940, 8011128, 10013910, 10681504, 13351880, 16022256, 20027820, 21363008, 26703760, 32044512, 40055640, 42726016, 53407520, 64089024, 80111280, 106815040, 128178048, 160222560, 213630080, 320445120, 640890240]

約数ペア:

[(1, 640890240), (2, 320445120), (3, 213630080), (4, 160222560), (5, 128178048), (6, 106815040), (8, 80111280), (10, 64089024), (12, 53407520), (15, 42726016), (16, 40055640), (20, 32044512), (24, 26703760), (30, 21363008), (32, 20027820), (40, 16022256), (48, 13351880), (60, 10681504), (64, 10013910), (80, 8011128), (96, 6675940), (120, 5340752), (128, 5006955), (160, 4005564), (192, 3337970), (240, 2670376), (320, 2002782), (384, 1668985), (480, 1335188), (541, 1184640), (617, 1038720), (640, 1001391), (960, 667594), (1082, 592320), (1234, 519360), (1623, 394880), (1851, 346240), (1920, 333797), (2164, 296160), (2468, 259680), (2705, 236928), (3085, 207744), (3246, 197440), (3702, 173120), (4328, 148080), (4936, 129840), (5410, 118464), (6170, 103872), (6492, 98720), (7404, 86560), (8115, 78976), (8656, 74040), (9255, 69248), (9872, 64920), (10820, 59232), (12340, 51936), (12984, 49360), (14808, 43280), (16230, 39488), (17312, 37020), (18510, 34624), (19744, 32460), (21640, 29616), (24680, 25968)]