655778860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{2683}}^1$

素因数の和:2815

約数の個数: 72

約数和(自身を含む): 1529268048

約数和(自身を除く): 873489188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 121, 202, 220, 242, 404, 484, 505, 605, 1010, 1111, 1210, 2020, 2222, 2420, 2683, 4444, 5366, 5555, 10732, 11110, 12221, 13415, 22220, 24442, 26830, 29513, 48884, 53660, 59026, 61105, 118052, 122210, 147565, 244420, 270983, 295130, 324643, 541966, 590260, 649286, 1083932, 1298572, 1354915, 1623215, 2709830, 2980813, 3246430, 5419660, 5961626, 6492860, 11923252, 14904065, 29808130, 32788943, 59616260, 65577886, 131155772, 163944715, 327889430, 655778860]

約数ペア:

[(1, 655778860), (2, 327889430), (4, 163944715), (5, 131155772), (10, 65577886), (11, 59616260), (20, 32788943), (22, 29808130), (44, 14904065), (55, 11923252), (101, 6492860), (110, 5961626), (121, 5419660), (202, 3246430), (220, 2980813), (242, 2709830), (404, 1623215), (484, 1354915), (505, 1298572), (605, 1083932), (1010, 649286), (1111, 590260), (1210, 541966), (2020, 324643), (2222, 295130), (2420, 270983), (2683, 244420), (4444, 147565), (5366, 122210), (5555, 118052), (10732, 61105), (11110, 59026), (12221, 53660), (13415, 48884), (22220, 29513), (24442, 26830)]