68351920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1$

素因数の和:303

約数の個数: 160

約数和(自身を含む): 201237120

約数和(自身を除く): 132885200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 41, 52, 56, 65, 70, 80, 82, 91, 104, 112, 130, 140, 164, 182, 205, 208, 229, 260, 280, 287, 328, 364, 410, 455, 458, 520, 533, 560, 574, 656, 728, 820, 910, 916, 1040, 1066, 1145, 1148, 1435, 1456, 1603, 1640, 1820, 1832, 2132, 2290, 2296, 2665, 2870, 2977, 3206, 3280, 3640, 3664, 3731, 4264, 4580, 4592, 5330, 5740, 5954, 6412, 7280, 7462, 8015, 8528, 9160, 9389, 10660, 11480, 11908, 12824, 14885, 14924, 16030, 18320, 18655, 18778, 20839, 21320, 22960, 23816, 25648, 29770, 29848, 32060, 37310, 37556, 41678, 42640, 46945, 47632, 59540, 59696, 64120, 65723, 74620, 75112, 83356, 93890, 104195, 119080, 122057, 128240, 131446, 149240, 150224, 166712, 187780, 208390, 238160, 244114, 262892, 298480, 328615, 333424, 375560, 416780, 488228, 525784, 610285, 657230, 751120, 833560, 854399, 976456, 1051568, 1220570, 1314460, 1667120, 1708798, 1952912, 2441140, 2628920, 3417596, 4271995, 4882280, 5257840, 6835192, 8543990, 9764560, 13670384, 17087980, 34175960, 68351920]

約数ペア:

[(1, 68351920), (2, 34175960), (4, 17087980), (5, 13670384), (7, 9764560), (8, 8543990), (10, 6835192), (13, 5257840), (14, 4882280), (16, 4271995), (20, 3417596), (26, 2628920), (28, 2441140), (35, 1952912), (40, 1708798), (41, 1667120), (52, 1314460), (56, 1220570), (65, 1051568), (70, 976456), (80, 854399), (82, 833560), (91, 751120), (104, 657230), (112, 610285), (130, 525784), (140, 488228), (164, 416780), (182, 375560), (205, 333424), (208, 328615), (229, 298480), (260, 262892), (280, 244114), (287, 238160), (328, 208390), (364, 187780), (410, 166712), (455, 150224), (458, 149240), (520, 131446), (533, 128240), (560, 122057), (574, 119080), (656, 104195), (728, 93890), (820, 83356), (910, 75112), (916, 74620), (1040, 65723), (1066, 64120), (1145, 59696), (1148, 59540), (1435, 47632), (1456, 46945), (1603, 42640), (1640, 41678), (1820, 37556), (1832, 37310), (2132, 32060), (2290, 29848), (2296, 29770), (2665, 25648), (2870, 23816), (2977, 22960), (3206, 21320), (3280, 20839), (3640, 18778), (3664, 18655), (3731, 18320), (4264, 16030), (4580, 14924), (4592, 14885), (5330, 12824), (5740, 11908), (5954, 11480), (6412, 10660), (7280, 9389), (7462, 9160), (8015, 8528)]