64545840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{571}}^1$

素因数の和:747

約数の個数: 120

約数和(自身を含む): 218529168

約数和(自身を除く): 153983328

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 157, 180, 240, 314, 360, 471, 571, 628, 720, 785, 942, 1142, 1256, 1413, 1570, 1713, 1884, 2284, 2355, 2512, 2826, 2855, 3140, 3426, 3768, 4568, 4710, 5139, 5652, 5710, 6280, 6852, 7065, 7536, 8565, 9136, 9420, 10278, 11304, 11420, 12560, 13704, 14130, 17130, 18840, 20556, 22608, 22840, 25695, 27408, 28260, 34260, 37680, 41112, 45680, 51390, 56520, 68520, 82224, 89647, 102780, 113040, 137040, 179294, 205560, 268941, 358588, 411120, 448235, 537882, 717176, 806823, 896470, 1075764, 1344705, 1434352, 1613646, 1792940, 2151528, 2689410, 3227292, 3585880, 4034115, 4303056, 5378820, 6454584, 7171760, 8068230, 10757640, 12909168, 16136460, 21515280, 32272920, 64545840]

約数ペア:

[(1, 64545840), (2, 32272920), (3, 21515280), (4, 16136460), (5, 12909168), (6, 10757640), (8, 8068230), (9, 7171760), (10, 6454584), (12, 5378820), (15, 4303056), (16, 4034115), (18, 3585880), (20, 3227292), (24, 2689410), (30, 2151528), (36, 1792940), (40, 1613646), (45, 1434352), (48, 1344705), (60, 1075764), (72, 896470), (80, 806823), (90, 717176), (120, 537882), (144, 448235), (157, 411120), (180, 358588), (240, 268941), (314, 205560), (360, 179294), (471, 137040), (571, 113040), (628, 102780), (720, 89647), (785, 82224), (942, 68520), (1142, 56520), (1256, 51390), (1413, 45680), (1570, 41112), (1713, 37680), (1884, 34260), (2284, 28260), (2355, 27408), (2512, 25695), (2826, 22840), (2855, 22608), (3140, 20556), (3426, 18840), (3768, 17130), (4568, 14130), (4710, 13704), (5139, 12560), (5652, 11420), (5710, 11304), (6280, 10278), (6852, 9420), (7065, 9136), (7536, 8565)]