31990490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{359}}^1$

素因数の和:459

約数の個数: 64

約数和(自身を含む): 70502400

約数和(自身を除く): 38511910

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 67, 70, 95, 133, 134, 190, 266, 335, 359, 469, 665, 670, 718, 938, 1273, 1330, 1795, 2345, 2513, 2546, 3590, 4690, 5026, 6365, 6821, 8911, 12565, 12730, 13642, 17822, 24053, 25130, 34105, 44555, 47747, 48106, 68210, 89110, 95494, 120265, 168371, 238735, 240530, 336742, 457007, 477470, 841855, 914014, 1683710, 2285035, 3199049, 4570070, 6398098, 15995245, 31990490]

約数ペア:

[(1, 31990490), (2, 15995245), (5, 6398098), (7, 4570070), (10, 3199049), (14, 2285035), (19, 1683710), (35, 914014), (38, 841855), (67, 477470), (70, 457007), (95, 336742), (133, 240530), (134, 238735), (190, 168371), (266, 120265), (335, 95494), (359, 89110), (469, 68210), (665, 48106), (670, 47747), (718, 44555), (938, 34105), (1273, 25130), (1330, 24053), (1795, 17822), (2345, 13642), (2513, 12730), (2546, 12565), (3590, 8911), (4690, 6821), (5026, 6365)]