31981805570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{251291}}^1$

素因数の和:251411

約数の個数: 64

約数和(自身を含む): 68391630720

約数和(自身を除く): 36409825150

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 89, 110, 130, 143, 178, 286, 445, 715, 890, 979, 1157, 1430, 1958, 2314, 4895, 5785, 9790, 11570, 12727, 25454, 63635, 127270, 251291, 502582, 1256455, 2512910, 2764201, 3266783, 5528402, 6533566, 13821005, 16333915, 22364899, 27642010, 32667830, 35934613, 44729798, 71869226, 111824495, 179673065, 223648990, 246013889, 290743687, 359346130, 492027778, 581487374, 1230069445, 1453718435, 2460138890, 2907436870, 3198180557, 6396361114, 15990902785, 31981805570]

約数ペア:

[(1, 31981805570), (2, 15990902785), (5, 6396361114), (10, 3198180557), (11, 2907436870), (13, 2460138890), (22, 1453718435), (26, 1230069445), (55, 581487374), (65, 492027778), (89, 359346130), (110, 290743687), (130, 246013889), (143, 223648990), (178, 179673065), (286, 111824495), (445, 71869226), (715, 44729798), (890, 35934613), (979, 32667830), (1157, 27642010), (1430, 22364899), (1958, 16333915), (2314, 13821005), (4895, 6533566), (5785, 5528402), (9790, 3266783), (11570, 2764201), (12727, 2512910), (25454, 1256455), (63635, 502582), (127270, 251291)]