20798160

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4561}}^1$

素因数の和:4596

約数の個数: 80

約数和(自身を含む): 67882560

約数和(自身を除く): 47084400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 4561, 9122, 13683, 18244, 22805, 27366, 36488, 45610, 54732, 68415, 72976, 86659, 91220, 109464, 136830, 173318, 182440, 218928, 259977, 273660, 346636, 364880, 433295, 519954, 547320, 693272, 866590, 1039908, 1094640, 1299885, 1386544, 1733180, 2079816, 2599770, 3466360, 4159632, 5199540, 6932720, 10399080, 20798160]

約数ペア:

[(1, 20798160), (2, 10399080), (3, 6932720), (4, 5199540), (5, 4159632), (6, 3466360), (8, 2599770), (10, 2079816), (12, 1733180), (15, 1386544), (16, 1299885), (19, 1094640), (20, 1039908), (24, 866590), (30, 693272), (38, 547320), (40, 519954), (48, 433295), (57, 364880), (60, 346636), (76, 273660), (80, 259977), (95, 218928), (114, 182440), (120, 173318), (152, 136830), (190, 109464), (228, 91220), (240, 86659), (285, 72976), (304, 68415), (380, 54732), (456, 45610), (570, 36488), (760, 27366), (912, 22805), (1140, 18244), (1520, 13683), (2280, 9122), (4560, 4561)]