81610600

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13163}}^1$

素因数の和:13210

約数の個数: 48

約数和(自身を含む): 195880320

約数和(自身を除く): 114269720

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 6200, 13163, 26326, 52652, 65815, 105304, 131630, 263260, 329075, 408053, 526520, 658150, 816106, 1316300, 1632212, 2040265, 2632600, 3264424, 4080530, 8161060, 10201325, 16322120, 20402650, 40805300, 81610600]

約数ペア:

[(1, 81610600), (2, 40805300), (4, 20402650), (5, 16322120), (8, 10201325), (10, 8161060), (20, 4080530), (25, 3264424), (31, 2632600), (40, 2040265), (50, 1632212), (62, 1316300), (100, 816106), (124, 658150), (155, 526520), (200, 408053), (248, 329075), (310, 263260), (620, 131630), (775, 105304), (1240, 65815), (1550, 52652), (3100, 26326), (6200, 13163)]