661617360

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{918913}}^1$

素因数の和:918932

約数の個数: 60

約数和(自身を含む): 2221934052

約数和(自身を除く): 1560316692

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, 180, 240, 360, 720, 918913, 1837826, 2756739, 3675652, 4594565, 5513478, 7351304, 8270217, 9189130, 11026956, 13783695, 14702608, 16540434, 18378260, 22053912, 27567390, 33080868, 36756520, 41351085, 44107824, 55134780, 66161736, 73513040, 82702170, 110269560, 132323472, 165404340, 220539120, 330808680, 661617360]

約数ペア:

[(1, 661617360), (2, 330808680), (3, 220539120), (4, 165404340), (5, 132323472), (6, 110269560), (8, 82702170), (9, 73513040), (10, 66161736), (12, 55134780), (15, 44107824), (16, 41351085), (18, 36756520), (20, 33080868), (24, 27567390), (30, 22053912), (36, 18378260), (40, 16540434), (45, 14702608), (48, 13783695), (60, 11026956), (72, 9189130), (80, 8270217), (90, 7351304), (120, 5513478), (144, 4594565), (180, 3675652), (240, 2756739), (360, 1837826), (720, 918913)]