1389191300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{25121}}^1$

素因数の和:25221

約数の個数: 72

約数和(自身を含む): 3488943360

約数和(自身を除く): 2099752060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 79, 100, 140, 158, 175, 316, 350, 395, 553, 700, 790, 1106, 1580, 1975, 2212, 2765, 3950, 5530, 7900, 11060, 13825, 25121, 27650, 50242, 55300, 100484, 125605, 175847, 251210, 351694, 502420, 628025, 703388, 879235, 1256050, 1758470, 1984559, 2512100, 3516940, 3969118, 4396175, 7938236, 8792350, 9922795, 13891913, 17584700, 19845590, 27783826, 39691180, 49613975, 55567652, 69459565, 99227950, 138919130, 198455900, 277838260, 347297825, 694595650, 1389191300]

約数ペア:

[(1, 1389191300), (2, 694595650), (4, 347297825), (5, 277838260), (7, 198455900), (10, 138919130), (14, 99227950), (20, 69459565), (25, 55567652), (28, 49613975), (35, 39691180), (50, 27783826), (70, 19845590), (79, 17584700), (100, 13891913), (140, 9922795), (158, 8792350), (175, 7938236), (316, 4396175), (350, 3969118), (395, 3516940), (553, 2512100), (700, 1984559), (790, 1758470), (1106, 1256050), (1580, 879235), (1975, 703388), (2212, 628025), (2765, 502420), (3950, 351694), (5530, 251210), (7900, 175847), (11060, 125605), (13825, 100484), (25121, 55300), (27650, 50242)]