20534300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:335

約数の個数: 72

約数和(自身を含む): 48371904

約数和(自身を除く): 27837604

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 47, 50, 68, 85, 94, 100, 170, 188, 235, 257, 340, 425, 470, 514, 799, 850, 940, 1028, 1175, 1285, 1598, 1700, 2350, 2570, 3196, 3995, 4369, 4700, 5140, 6425, 7990, 8738, 12079, 12850, 15980, 17476, 19975, 21845, 24158, 25700, 39950, 43690, 48316, 60395, 79900, 87380, 109225, 120790, 205343, 218450, 241580, 301975, 410686, 436900, 603950, 821372, 1026715, 1207900, 2053430, 4106860, 5133575, 10267150, 20534300]

約数ペア:

[(1, 20534300), (2, 10267150), (4, 5133575), (5, 4106860), (10, 2053430), (17, 1207900), (20, 1026715), (25, 821372), (34, 603950), (47, 436900), (50, 410686), (68, 301975), (85, 241580), (94, 218450), (100, 205343), (170, 120790), (188, 109225), (235, 87380), (257, 79900), (340, 60395), (425, 48316), (470, 43690), (514, 39950), (799, 25700), (850, 24158), (940, 21845), (1028, 19975), (1175, 17476), (1285, 15980), (1598, 12850), (1700, 12079), (2350, 8738), (2570, 7990), (3196, 6425), (3995, 5140), (4369, 4700)]