81557160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{39979}}^1$

素因数の和:40010

約数の個数: 64

約数和(自身を含む): 259070400

約数和(自身を除く): 177513240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 39979, 79958, 119937, 159916, 199895, 239874, 319832, 399790, 479748, 599685, 679643, 799580, 959496, 1199370, 1359286, 1599160, 2038929, 2398740, 2718572, 3398215, 4077858, 4797480, 5437144, 6796430, 8155716, 10194645, 13592860, 16311432, 20389290, 27185720, 40778580, 81557160]

約数ペア:

[(1, 81557160), (2, 40778580), (3, 27185720), (4, 20389290), (5, 16311432), (6, 13592860), (8, 10194645), (10, 8155716), (12, 6796430), (15, 5437144), (17, 4797480), (20, 4077858), (24, 3398215), (30, 2718572), (34, 2398740), (40, 2038929), (51, 1599160), (60, 1359286), (68, 1199370), (85, 959496), (102, 799580), (120, 679643), (136, 599685), (170, 479748), (204, 399790), (255, 319832), (340, 239874), (408, 199895), (510, 159916), (680, 119937), (1020, 79958), (2040, 39979)]