31166720

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1873}}^1$

素因数の和:1907

約数の個数: 72

約数和(自身を含む): 80439576

約数和(自身を除く): 49272856

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 1873, 2080, 3328, 3746, 4160, 7492, 8320, 9365, 14984, 16640, 18730, 24349, 29968, 37460, 48698, 59936, 74920, 97396, 119872, 121745, 149840, 194792, 239744, 243490, 299680, 389584, 479488, 486980, 599360, 779168, 973960, 1198720, 1558336, 1947920, 2397440, 3116672, 3895840, 6233344, 7791680, 15583360, 31166720]

約数ペア:

[(1, 31166720), (2, 15583360), (4, 7791680), (5, 6233344), (8, 3895840), (10, 3116672), (13, 2397440), (16, 1947920), (20, 1558336), (26, 1198720), (32, 973960), (40, 779168), (52, 599360), (64, 486980), (65, 479488), (80, 389584), (104, 299680), (128, 243490), (130, 239744), (160, 194792), (208, 149840), (256, 121745), (260, 119872), (320, 97396), (416, 74920), (520, 59936), (640, 48698), (832, 37460), (1040, 29968), (1280, 24349), (1664, 18730), (1873, 16640), (2080, 14984), (3328, 9365), (3746, 8320), (4160, 7492)]