161015540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{39659}}^1$

素因数の和:39704

約数の個数: 48

約数和(自身を含む): 399772800

約数和(自身を除く): 238757260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 39659, 79318, 158636, 198295, 277613, 396590, 555226, 793180, 1110452, 1150111, 1388065, 2300222, 2776130, 4600444, 5552260, 5750555, 8050777, 11501110, 16101554, 23002220, 32203108, 40253885, 80507770, 161015540]

約数ペア:

[(1, 161015540), (2, 80507770), (4, 40253885), (5, 32203108), (7, 23002220), (10, 16101554), (14, 11501110), (20, 8050777), (28, 5750555), (29, 5552260), (35, 4600444), (58, 2776130), (70, 2300222), (116, 1388065), (140, 1150111), (145, 1110452), (203, 793180), (290, 555226), (406, 396590), (580, 277613), (812, 198295), (1015, 158636), (2030, 79318), (4060, 39659)]