30990240

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{21521}}^1$

素因数の和:21542

約数の個数: 72

約数和(自身を含む): 105759108

約数和(自身を除く): 74768868

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 21521, 43042, 64563, 86084, 107605, 129126, 172168, 193689, 215210, 258252, 322815, 344336, 387378, 430420, 516504, 645630, 688672, 774756, 860840, 968445, 1033008, 1291260, 1549512, 1721680, 1936890, 2066016, 2582520, 3099024, 3443360, 3873780, 5165040, 6198048, 7747560, 10330080, 15495120, 30990240]

約数ペア:

[(1, 30990240), (2, 15495120), (3, 10330080), (4, 7747560), (5, 6198048), (6, 5165040), (8, 3873780), (9, 3443360), (10, 3099024), (12, 2582520), (15, 2066016), (16, 1936890), (18, 1721680), (20, 1549512), (24, 1291260), (30, 1033008), (32, 968445), (36, 860840), (40, 774756), (45, 688672), (48, 645630), (60, 516504), (72, 430420), (80, 387378), (90, 344336), (96, 322815), (120, 258252), (144, 215210), (160, 193689), (180, 172168), (240, 129126), (288, 107605), (360, 86084), (480, 64563), (720, 43042), (1440, 21521)]