210390895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{911}}^1$

素因数の和:976

約数の個数: 64

約数和(自身を含む): 330946560

約数和(自身を除く): 120555665

約数列:

[1, 5, 11, 13, 17, 19, 55, 65, 85, 95, 143, 187, 209, 221, 247, 323, 715, 911, 935, 1045, 1105, 1235, 1615, 2431, 2717, 3553, 4199, 4555, 10021, 11843, 12155, 13585, 15487, 17309, 17765, 20995, 46189, 50105, 59215, 77435, 86545, 130273, 170357, 190399, 201331, 225017, 230945, 294253, 651365, 851785, 951995, 1006655, 1125085, 1471265, 2214641, 2475187, 3236783, 3825289, 11073205, 12375935, 16183915, 19126445, 42078179, 210390895]

約数ペア:

[(1, 210390895), (5, 42078179), (11, 19126445), (13, 16183915), (17, 12375935), (19, 11073205), (55, 3825289), (65, 3236783), (85, 2475187), (95, 2214641), (143, 1471265), (187, 1125085), (209, 1006655), (221, 951995), (247, 851785), (323, 651365), (715, 294253), (911, 230945), (935, 225017), (1045, 201331), (1105, 190399), (1235, 170357), (1615, 130273), (2431, 86545), (2717, 77435), (3553, 59215), (4199, 50105), (4555, 46189), (10021, 20995), (11843, 17765), (12155, 17309), (13585, 15487)]