209990144

素因数分解:

$2^9\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4507}}^1$

素因数の和:4545

約数の個数: 80

約数和(自身を含む): 516508608

約数和(自身を除く): 306518464

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 512, 728, 832, 896, 1456, 1664, 1792, 2912, 3328, 3584, 4507, 5824, 6656, 9014, 11648, 18028, 23296, 31549, 36056, 46592, 58591, 63098, 72112, 117182, 126196, 144224, 234364, 252392, 288448, 410137, 468728, 504784, 576896, 820274, 937456, 1009568, 1153792, 1640548, 1874912, 2019136, 2307584, 3281096, 3749824, 4038272, 6562192, 7499648, 8076544, 13124384, 14999296, 16153088, 26248768, 29998592, 52497536, 104995072, 209990144]

約数ペア:

[(1, 209990144), (2, 104995072), (4, 52497536), (7, 29998592), (8, 26248768), (13, 16153088), (14, 14999296), (16, 13124384), (26, 8076544), (28, 7499648), (32, 6562192), (52, 4038272), (56, 3749824), (64, 3281096), (91, 2307584), (104, 2019136), (112, 1874912), (128, 1640548), (182, 1153792), (208, 1009568), (224, 937456), (256, 820274), (364, 576896), (416, 504784), (448, 468728), (512, 410137), (728, 288448), (832, 252392), (896, 234364), (1456, 144224), (1664, 126196), (1792, 117182), (2912, 72112), (3328, 63098), (3584, 58591), (4507, 46592), (5824, 36056), (6656, 31549), (9014, 23296), (11648, 18028)]