81048260

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2143}}^1$

素因数の和:2244

約数の個数: 48

約数和(自身を含む): 178655232

約数和(自身を除く): 97606972

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 1220, 1891, 2143, 3782, 4286, 7564, 8572, 9455, 10715, 18910, 21430, 37820, 42860, 66433, 130723, 132866, 261446, 265732, 332165, 522892, 653615, 664330, 1307230, 1328660, 2614460, 4052413, 8104826, 16209652, 20262065, 40524130, 81048260]

約数ペア:

[(1, 81048260), (2, 40524130), (4, 20262065), (5, 16209652), (10, 8104826), (20, 4052413), (31, 2614460), (61, 1328660), (62, 1307230), (122, 664330), (124, 653615), (155, 522892), (244, 332165), (305, 265732), (310, 261446), (610, 132866), (620, 130723), (1220, 66433), (1891, 42860), (2143, 37820), (3782, 21430), (4286, 18910), (7564, 10715), (8572, 9455)]