1286817720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{8641}}^1$

素因数の和:8745

約数の個数: 128

約数和(自身を含む): 4144011840

約数和(自身を除く): 2857194120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 73, 85, 102, 120, 136, 146, 170, 204, 219, 255, 292, 340, 365, 408, 438, 510, 584, 680, 730, 876, 1020, 1095, 1241, 1460, 1752, 2040, 2190, 2482, 2920, 3723, 4380, 4964, 6205, 7446, 8641, 8760, 9928, 12410, 14892, 17282, 18615, 24820, 25923, 29784, 34564, 37230, 43205, 49640, 51846, 69128, 74460, 86410, 103692, 129615, 146897, 148920, 172820, 207384, 259230, 293794, 345640, 440691, 518460, 587588, 630793, 734485, 881382, 1036920, 1175176, 1261586, 1468970, 1762764, 1892379, 2203455, 2523172, 2937940, 3153965, 3525528, 3784758, 4406910, 5046344, 5875880, 6307930, 7569516, 8813820, 9461895, 10723481, 12615860, 15139032, 17627640, 18923790, 21446962, 25231720, 32170443, 37847580, 42893924, 53617405, 64340886, 75695160, 85787848, 107234810, 128681772, 160852215, 214469620, 257363544, 321704430, 428939240, 643408860, 1286817720]

約数ペア:

[(1, 1286817720), (2, 643408860), (3, 428939240), (4, 321704430), (5, 257363544), (6, 214469620), (8, 160852215), (10, 128681772), (12, 107234810), (15, 85787848), (17, 75695160), (20, 64340886), (24, 53617405), (30, 42893924), (34, 37847580), (40, 32170443), (51, 25231720), (60, 21446962), (68, 18923790), (73, 17627640), (85, 15139032), (102, 12615860), (120, 10723481), (136, 9461895), (146, 8813820), (170, 7569516), (204, 6307930), (219, 5875880), (255, 5046344), (292, 4406910), (340, 3784758), (365, 3525528), (408, 3153965), (438, 2937940), (510, 2523172), (584, 2203455), (680, 1892379), (730, 1762764), (876, 1468970), (1020, 1261586), (1095, 1175176), (1241, 1036920), (1460, 881382), (1752, 734485), (2040, 630793), (2190, 587588), (2482, 518460), (2920, 440691), (3723, 345640), (4380, 293794), (4964, 259230), (6205, 207384), (7446, 172820), (8641, 148920), (8760, 146897), (9928, 129615), (12410, 103692), (14892, 86410), (17282, 74460), (18615, 69128), (24820, 51846), (25923, 49640), (29784, 43205), (34564, 37230)]