20188644280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{653}}^1\times {\mathrm{1013}}^1$

素因数の和:1793

約数の個数: 128

約数和(自身を含む): 52521955200

約数和(自身を除く): 32333310920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 140, 218, 280, 436, 545, 653, 763, 872, 1013, 1090, 1306, 1526, 2026, 2180, 2612, 3052, 3265, 3815, 4052, 4360, 4571, 5065, 5224, 6104, 6530, 7091, 7630, 8104, 9142, 10130, 13060, 14182, 15260, 18284, 20260, 22855, 26120, 28364, 30520, 35455, 36568, 40520, 45710, 56728, 70910, 71177, 91420, 110417, 141820, 142354, 182840, 220834, 283640, 284708, 355885, 441668, 498239, 552085, 569416, 661489, 711770, 772919, 883336, 996478, 1104170, 1322978, 1423540, 1545838, 1992956, 2208340, 2491195, 2645956, 2847080, 3091676, 3307445, 3864595, 3985912, 4416680, 4630423, 4982390, 5291912, 6183352, 6614890, 7729190, 9260846, 9964780, 13229780, 15458380, 18521692, 19929560, 23152115, 26459560, 30916760, 37043384, 46304230, 72102301, 92608460, 144204602, 185216920, 288409204, 360511505, 504716107, 576818408, 721023010, 1009432214, 1442046020, 2018864428, 2523580535, 2884092040, 4037728856, 5047161070, 10094322140, 20188644280]

約数ペア:

[(1, 20188644280), (2, 10094322140), (4, 5047161070), (5, 4037728856), (7, 2884092040), (8, 2523580535), (10, 2018864428), (14, 1442046020), (20, 1009432214), (28, 721023010), (35, 576818408), (40, 504716107), (56, 360511505), (70, 288409204), (109, 185216920), (140, 144204602), (218, 92608460), (280, 72102301), (436, 46304230), (545, 37043384), (653, 30916760), (763, 26459560), (872, 23152115), (1013, 19929560), (1090, 18521692), (1306, 15458380), (1526, 13229780), (2026, 9964780), (2180, 9260846), (2612, 7729190), (3052, 6614890), (3265, 6183352), (3815, 5291912), (4052, 4982390), (4360, 4630423), (4571, 4416680), (5065, 3985912), (5224, 3864595), (6104, 3307445), (6530, 3091676), (7091, 2847080), (7630, 2645956), (8104, 2491195), (9142, 2208340), (10130, 1992956), (13060, 1545838), (14182, 1423540), (15260, 1322978), (18284, 1104170), (20260, 996478), (22855, 883336), (26120, 772919), (28364, 711770), (30520, 661489), (35455, 569416), (36568, 552085), (40520, 498239), (45710, 441668), (56728, 355885), (70910, 284708), (71177, 283640), (91420, 220834), (110417, 182840), (141820, 142354)]