1280494798

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 2198430720

約数和(自身を除く): 917935922

約数列:

[1, 2, 11, 22, 61, 71, 89, 122, 142, 151, 178, 302, 671, 781, 979, 1342, 1562, 1661, 1958, 3322, 4331, 5429, 6319, 8662, 9211, 10721, 10858, 12638, 13439, 18422, 21442, 26878, 47641, 59719, 69509, 95282, 101321, 117931, 119438, 139018, 147829, 202642, 235862, 295658, 385459, 653981, 770918, 819779, 954169, 1307962, 1639558, 1908338, 4240049, 7193791, 8480098, 9017569, 10495859, 14387582, 18035138, 20991718, 58204309, 116408618, 640247399, 1280494798]

約数ペア:

[(1, 1280494798), (2, 640247399), (11, 116408618), (22, 58204309), (61, 20991718), (71, 18035138), (89, 14387582), (122, 10495859), (142, 9017569), (151, 8480098), (178, 7193791), (302, 4240049), (671, 1908338), (781, 1639558), (979, 1307962), (1342, 954169), (1562, 819779), (1661, 770918), (1958, 653981), (3322, 385459), (4331, 295658), (5429, 235862), (6319, 202642), (8662, 147829), (9211, 139018), (10721, 119438), (10858, 117931), (12638, 101321), (13439, 95282), (18422, 69509), (21442, 59719), (26878, 47641)]