72217000

素因数分解:

$2^3\times 5^3\times {\mathrm{257}}^1\times {\mathrm{281}}^1$

素因数の和:559

約数の個数: 64

約数和(自身を含む): 170249040

約数和(自身を除く): 98032040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 257, 281, 500, 514, 562, 1000, 1028, 1124, 1285, 1405, 2056, 2248, 2570, 2810, 5140, 5620, 6425, 7025, 10280, 11240, 12850, 14050, 25700, 28100, 32125, 35125, 51400, 56200, 64250, 70250, 72217, 128500, 140500, 144434, 257000, 281000, 288868, 361085, 577736, 722170, 1444340, 1805425, 2888680, 3610850, 7221700, 9027125, 14443400, 18054250, 36108500, 72217000]

約数ペア:

[(1, 72217000), (2, 36108500), (4, 18054250), (5, 14443400), (8, 9027125), (10, 7221700), (20, 3610850), (25, 2888680), (40, 1805425), (50, 1444340), (100, 722170), (125, 577736), (200, 361085), (250, 288868), (257, 281000), (281, 257000), (500, 144434), (514, 140500), (562, 128500), (1000, 72217), (1028, 70250), (1124, 64250), (1285, 56200), (1405, 51400), (2056, 35125), (2248, 32125), (2570, 28100), (2810, 25700), (5140, 14050), (5620, 12850), (6425, 11240), (7025, 10280)]