158781380

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{8831}}^1$

素因数の和:8900

約数の個数: 48

約数和(自身を含む): 356106240

約数和(自身を除く): 197324860

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 899, 1798, 3596, 4495, 8831, 8990, 17662, 17980, 35324, 44155, 88310, 176620, 256099, 273761, 512198, 547522, 1024396, 1095044, 1280495, 1368805, 2560990, 2737610, 5121980, 5475220, 7939069, 15878138, 31756276, 39695345, 79390690, 158781380]

約数ペア:

[(1, 158781380), (2, 79390690), (4, 39695345), (5, 31756276), (10, 15878138), (20, 7939069), (29, 5475220), (31, 5121980), (58, 2737610), (62, 2560990), (116, 1368805), (124, 1280495), (145, 1095044), (155, 1024396), (290, 547522), (310, 512198), (580, 273761), (620, 256099), (899, 176620), (1798, 88310), (3596, 44155), (4495, 35324), (8831, 17980), (8990, 17662)]