20938080

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{241}}^1$

素因数の和:440

約数の個数: 96

約数和(自身を含む): 66594528

約数和(自身を除く): 45656448

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 181, 240, 241, 362, 480, 482, 543, 723, 724, 905, 964, 1086, 1205, 1446, 1448, 1810, 1928, 2172, 2410, 2715, 2892, 2896, 3615, 3620, 3856, 4344, 4820, 5430, 5784, 5792, 7230, 7240, 7712, 8688, 9640, 10860, 11568, 14460, 14480, 17376, 19280, 21720, 23136, 28920, 28960, 38560, 43440, 43621, 57840, 86880, 87242, 115680, 130863, 174484, 218105, 261726, 348968, 436210, 523452, 654315, 697936, 872420, 1046904, 1308630, 1395872, 1744840, 2093808, 2617260, 3489680, 4187616, 5234520, 6979360, 10469040, 20938080]

約数ペア:

[(1, 20938080), (2, 10469040), (3, 6979360), (4, 5234520), (5, 4187616), (6, 3489680), (8, 2617260), (10, 2093808), (12, 1744840), (15, 1395872), (16, 1308630), (20, 1046904), (24, 872420), (30, 697936), (32, 654315), (40, 523452), (48, 436210), (60, 348968), (80, 261726), (96, 218105), (120, 174484), (160, 130863), (181, 115680), (240, 87242), (241, 86880), (362, 57840), (480, 43621), (482, 43440), (543, 38560), (723, 28960), (724, 28920), (905, 23136), (964, 21720), (1086, 19280), (1205, 17376), (1446, 14480), (1448, 14460), (1810, 11568), (1928, 10860), (2172, 9640), (2410, 8688), (2715, 7712), (2892, 7240), (2896, 7230), (3615, 5792), (3620, 5784), (3856, 5430), (4344, 4820)]