69919420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 150490368

約数和(自身を除く): 80570948

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 223, 244, 257, 305, 446, 514, 610, 892, 1028, 1115, 1220, 1285, 2230, 2570, 4460, 5140, 13603, 15677, 27206, 31354, 54412, 57311, 62708, 68015, 78385, 114622, 136030, 156770, 229244, 272060, 286555, 313540, 573110, 1146220, 3495971, 6991942, 13983884, 17479855, 34959710, 69919420]

約数ペア:

[(1, 69919420), (2, 34959710), (4, 17479855), (5, 13983884), (10, 6991942), (20, 3495971), (61, 1146220), (122, 573110), (223, 313540), (244, 286555), (257, 272060), (305, 229244), (446, 156770), (514, 136030), (610, 114622), (892, 78385), (1028, 68015), (1115, 62708), (1220, 57311), (1285, 54412), (2230, 31354), (2570, 27206), (4460, 15677), (5140, 13603)]