2155280260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{216829}}^1$

素因数の和:216916

約数の個数: 48

約数和(自身を含む): 5245551360

約数和(自身を除く): 3090271100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 216829, 433658, 867316, 1084145, 1517803, 2168290, 3035606, 4336580, 6071212, 7589015, 15178030, 15394859, 30356060, 30789718, 61579436, 76974295, 107764013, 153948590, 215528026, 307897180, 431056052, 538820065, 1077640130, 2155280260]

約数ペア:

[(1, 2155280260), (2, 1077640130), (4, 538820065), (5, 431056052), (7, 307897180), (10, 215528026), (14, 153948590), (20, 107764013), (28, 76974295), (35, 61579436), (70, 30789718), (71, 30356060), (140, 15394859), (142, 15178030), (284, 7589015), (355, 6071212), (497, 4336580), (710, 3035606), (994, 2168290), (1420, 1517803), (1988, 1084145), (2485, 867316), (4970, 433658), (9940, 216829)]