155581720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{9109}}^1$

素因数の和:9188

約数の個数: 64

約数和(自身を含む): 406670400

約数和(自身を除く): 251088680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1220, 1708, 2135, 2440, 3416, 4270, 8540, 9109, 17080, 18218, 36436, 45545, 63763, 72872, 91090, 127526, 182180, 255052, 318815, 364360, 510104, 555649, 637630, 1111298, 1275260, 2222596, 2550520, 2778245, 3889543, 4445192, 5556490, 7779086, 11112980, 15558172, 19447715, 22225960, 31116344, 38895430, 77790860, 155581720]

約数ペア:

[(1, 155581720), (2, 77790860), (4, 38895430), (5, 31116344), (7, 22225960), (8, 19447715), (10, 15558172), (14, 11112980), (20, 7779086), (28, 5556490), (35, 4445192), (40, 3889543), (56, 2778245), (61, 2550520), (70, 2222596), (122, 1275260), (140, 1111298), (244, 637630), (280, 555649), (305, 510104), (427, 364360), (488, 318815), (610, 255052), (854, 182180), (1220, 127526), (1708, 91090), (2135, 72872), (2440, 63763), (3416, 45545), (4270, 36436), (8540, 18218), (9109, 17080)]