81573400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:329

約数の個数: 96

約数和(自身を含む): 199987200

約数和(自身を除く): 118413800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 59, 62, 100, 118, 124, 155, 200, 223, 236, 248, 295, 310, 446, 472, 590, 620, 775, 892, 1115, 1180, 1240, 1475, 1550, 1784, 1829, 2230, 2360, 2950, 3100, 3658, 4460, 5575, 5900, 6200, 6913, 7316, 8920, 9145, 11150, 11800, 13157, 13826, 14632, 18290, 22300, 26314, 27652, 34565, 36580, 44600, 45725, 52628, 55304, 65785, 69130, 73160, 91450, 105256, 131570, 138260, 172825, 182900, 263140, 276520, 328925, 345650, 365800, 407867, 526280, 657850, 691300, 815734, 1315700, 1382600, 1631468, 2039335, 2631400, 3262936, 4078670, 8157340, 10196675, 16314680, 20393350, 40786700, 81573400]

約数ペア:

[(1, 81573400), (2, 40786700), (4, 20393350), (5, 16314680), (8, 10196675), (10, 8157340), (20, 4078670), (25, 3262936), (31, 2631400), (40, 2039335), (50, 1631468), (59, 1382600), (62, 1315700), (100, 815734), (118, 691300), (124, 657850), (155, 526280), (200, 407867), (223, 365800), (236, 345650), (248, 328925), (295, 276520), (310, 263140), (446, 182900), (472, 172825), (590, 138260), (620, 131570), (775, 105256), (892, 91450), (1115, 73160), (1180, 69130), (1240, 65785), (1475, 55304), (1550, 52628), (1784, 45725), (1829, 44600), (2230, 36580), (2360, 34565), (2950, 27652), (3100, 26314), (3658, 22300), (4460, 18290), (5575, 14632), (5900, 13826), (6200, 13157), (6913, 11800), (7316, 11150), (8920, 9145)]