128870720

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1181}}^1$

素因数の和:1240

約数の個数: 112

約数和(自身を含む): 345862656

約数和(自身を除く): 216991936

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 155, 160, 176, 220, 248, 310, 320, 341, 352, 440, 496, 620, 682, 704, 880, 992, 1181, 1240, 1364, 1705, 1760, 1984, 2362, 2480, 2728, 3410, 3520, 4724, 4960, 5456, 5905, 6820, 9448, 9920, 10912, 11810, 12991, 13640, 18896, 21824, 23620, 25982, 27280, 36611, 37792, 47240, 51964, 54560, 64955, 73222, 75584, 94480, 103928, 109120, 129910, 146444, 183055, 188960, 207856, 259820, 292888, 366110, 377920, 402721, 415712, 519640, 585776, 732220, 805442, 831424, 1039280, 1171552, 1464440, 1610884, 2013605, 2078560, 2343104, 2928880, 3221768, 4027210, 4157120, 5857760, 6443536, 8054420, 11715520, 12887072, 16108840, 25774144, 32217680, 64435360, 128870720]

約数ペア:

[(1, 128870720), (2, 64435360), (4, 32217680), (5, 25774144), (8, 16108840), (10, 12887072), (11, 11715520), (16, 8054420), (20, 6443536), (22, 5857760), (31, 4157120), (32, 4027210), (40, 3221768), (44, 2928880), (55, 2343104), (62, 2078560), (64, 2013605), (80, 1610884), (88, 1464440), (110, 1171552), (124, 1039280), (155, 831424), (160, 805442), (176, 732220), (220, 585776), (248, 519640), (310, 415712), (320, 402721), (341, 377920), (352, 366110), (440, 292888), (496, 259820), (620, 207856), (682, 188960), (704, 183055), (880, 146444), (992, 129910), (1181, 109120), (1240, 103928), (1364, 94480), (1705, 75584), (1760, 73222), (1984, 64955), (2362, 54560), (2480, 51964), (2728, 47240), (3410, 37792), (3520, 36611), (4724, 27280), (4960, 25982), (5456, 23620), (5905, 21824), (6820, 18896), (9448, 13640), (9920, 12991), (10912, 11810)]