39981200

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:265

約数の個数: 120

約数和(自身を含む): 111629760

約数和(自身を除く): 71648560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 109, 112, 131, 140, 175, 200, 218, 262, 280, 350, 400, 436, 524, 545, 560, 655, 700, 763, 872, 917, 1048, 1090, 1310, 1400, 1526, 1744, 1834, 2096, 2180, 2620, 2725, 2800, 3052, 3275, 3668, 3815, 4360, 4585, 5240, 5450, 6104, 6550, 7336, 7630, 8720, 9170, 10480, 10900, 12208, 13100, 14279, 14672, 15260, 18340, 19075, 21800, 22925, 26200, 28558, 30520, 36680, 38150, 43600, 45850, 52400, 57116, 61040, 71395, 73360, 76300, 91700, 99953, 114232, 142790, 152600, 183400, 199906, 228464, 285580, 305200, 356975, 366800, 399812, 499765, 571160, 713950, 799624, 999530, 1142320, 1427900, 1599248, 1999060, 2498825, 2855800, 3998120, 4997650, 5711600, 7996240, 9995300, 19990600, 39981200]

約数ペア:

[(1, 39981200), (2, 19990600), (4, 9995300), (5, 7996240), (7, 5711600), (8, 4997650), (10, 3998120), (14, 2855800), (16, 2498825), (20, 1999060), (25, 1599248), (28, 1427900), (35, 1142320), (40, 999530), (50, 799624), (56, 713950), (70, 571160), (80, 499765), (100, 399812), (109, 366800), (112, 356975), (131, 305200), (140, 285580), (175, 228464), (200, 199906), (218, 183400), (262, 152600), (280, 142790), (350, 114232), (400, 99953), (436, 91700), (524, 76300), (545, 73360), (560, 71395), (655, 61040), (700, 57116), (763, 52400), (872, 45850), (917, 43600), (1048, 38150), (1090, 36680), (1310, 30520), (1400, 28558), (1526, 26200), (1744, 22925), (1834, 21800), (2096, 19075), (2180, 18340), (2620, 15260), (2725, 14672), (2800, 14279), (3052, 13100), (3275, 12208), (3668, 10900), (3815, 10480), (4360, 9170), (4585, 8720), (5240, 7630), (5450, 7336), (6104, 6550)]