19780080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1129}}^1$

素因数の和:1218

約数の個数: 80

約数和(自身を含む): 62213280

約数和(自身を除く): 42433200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 73, 80, 120, 146, 219, 240, 292, 365, 438, 584, 730, 876, 1095, 1129, 1168, 1460, 1752, 2190, 2258, 2920, 3387, 3504, 4380, 4516, 5645, 5840, 6774, 8760, 9032, 11290, 13548, 16935, 17520, 18064, 22580, 27096, 33870, 45160, 54192, 67740, 82417, 90320, 135480, 164834, 247251, 270960, 329668, 412085, 494502, 659336, 824170, 989004, 1236255, 1318672, 1648340, 1978008, 2472510, 3296680, 3956016, 4945020, 6593360, 9890040, 19780080]

約数ペア:

[(1, 19780080), (2, 9890040), (3, 6593360), (4, 4945020), (5, 3956016), (6, 3296680), (8, 2472510), (10, 1978008), (12, 1648340), (15, 1318672), (16, 1236255), (20, 989004), (24, 824170), (30, 659336), (40, 494502), (48, 412085), (60, 329668), (73, 270960), (80, 247251), (120, 164834), (146, 135480), (219, 90320), (240, 82417), (292, 67740), (365, 54192), (438, 45160), (584, 33870), (730, 27096), (876, 22580), (1095, 18064), (1129, 17520), (1168, 16935), (1460, 13548), (1752, 11290), (2190, 9032), (2258, 8760), (2920, 6774), (3387, 5840), (3504, 5645), (4380, 4516)]