20172272920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1\times {\mathrm{17713}}^1$

素因数の和:18196

約数の個数: 64

約数和(自身を含む): 46144261440

約数和(自身を除く): 25971988520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 401, 568, 710, 802, 1420, 1604, 2005, 2840, 3208, 4010, 8020, 16040, 17713, 28471, 35426, 56942, 70852, 88565, 113884, 141704, 142355, 177130, 227768, 284710, 354260, 569420, 708520, 1138840, 1257623, 2515246, 5030492, 6288115, 7102913, 10060984, 12576230, 14205826, 25152460, 28411652, 35514565, 50304920, 56823304, 71029130, 142058260, 284116520, 504306823, 1008613646, 2017227292, 2521534115, 4034454584, 5043068230, 10086136460, 20172272920]

約数ペア:

[(1, 20172272920), (2, 10086136460), (4, 5043068230), (5, 4034454584), (8, 2521534115), (10, 2017227292), (20, 1008613646), (40, 504306823), (71, 284116520), (142, 142058260), (284, 71029130), (355, 56823304), (401, 50304920), (568, 35514565), (710, 28411652), (802, 25152460), (1420, 14205826), (1604, 12576230), (2005, 10060984), (2840, 7102913), (3208, 6288115), (4010, 5030492), (8020, 2515246), (16040, 1257623), (17713, 1138840), (28471, 708520), (35426, 569420), (56942, 354260), (70852, 284710), (88565, 227768), (113884, 177130), (141704, 142355)]