78319120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1459}}^1$

素因数の和:1544

約数の個数: 80

約数和(自身を含む): 202040640

約数和(自身を除く): 123721520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 61, 80, 88, 110, 122, 176, 220, 244, 305, 440, 488, 610, 671, 880, 976, 1220, 1342, 1459, 2440, 2684, 2918, 3355, 4880, 5368, 5836, 6710, 7295, 10736, 11672, 13420, 14590, 16049, 23344, 26840, 29180, 32098, 53680, 58360, 64196, 80245, 88999, 116720, 128392, 160490, 177998, 256784, 320980, 355996, 444995, 641960, 711992, 889990, 978989, 1283920, 1423984, 1779980, 1957978, 3559960, 3915956, 4894945, 7119920, 7831912, 9789890, 15663824, 19579780, 39159560, 78319120]

約数ペア:

[(1, 78319120), (2, 39159560), (4, 19579780), (5, 15663824), (8, 9789890), (10, 7831912), (11, 7119920), (16, 4894945), (20, 3915956), (22, 3559960), (40, 1957978), (44, 1779980), (55, 1423984), (61, 1283920), (80, 978989), (88, 889990), (110, 711992), (122, 641960), (176, 444995), (220, 355996), (244, 320980), (305, 256784), (440, 177998), (488, 160490), (610, 128392), (671, 116720), (880, 88999), (976, 80245), (1220, 64196), (1342, 58360), (1459, 53680), (2440, 32098), (2684, 29180), (2918, 26840), (3355, 23344), (4880, 16049), (5368, 14590), (5836, 13420), (6710, 11672), (7295, 10736)]