19958952

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:163

約数の個数: 128

約数和(自身を含む): 58786560

約数和(自身を除く): 38827608

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 53, 68, 71, 78, 102, 104, 106, 136, 142, 156, 159, 204, 212, 213, 221, 284, 312, 318, 408, 424, 426, 442, 568, 636, 663, 689, 852, 884, 901, 923, 1207, 1272, 1326, 1378, 1704, 1768, 1802, 1846, 2067, 2414, 2652, 2703, 2756, 2769, 3604, 3621, 3692, 3763, 4134, 4828, 5304, 5406, 5512, 5538, 7208, 7242, 7384, 7526, 8268, 9656, 10812, 11076, 11289, 11713, 14484, 15052, 15691, 16536, 21624, 22152, 22578, 23426, 28968, 30104, 31382, 35139, 45156, 46852, 47073, 48919, 62764, 63971, 70278, 90312, 93704, 94146, 97838, 125528, 127942, 140556, 146757, 188292, 191913, 195676, 255884, 281112, 293514, 376584, 383826, 391352, 511768, 587028, 767652, 831623, 1174056, 1535304, 1663246, 2494869, 3326492, 4989738, 6652984, 9979476, 19958952]

約数ペア:

[(1, 19958952), (2, 9979476), (3, 6652984), (4, 4989738), (6, 3326492), (8, 2494869), (12, 1663246), (13, 1535304), (17, 1174056), (24, 831623), (26, 767652), (34, 587028), (39, 511768), (51, 391352), (52, 383826), (53, 376584), (68, 293514), (71, 281112), (78, 255884), (102, 195676), (104, 191913), (106, 188292), (136, 146757), (142, 140556), (156, 127942), (159, 125528), (204, 97838), (212, 94146), (213, 93704), (221, 90312), (284, 70278), (312, 63971), (318, 62764), (408, 48919), (424, 47073), (426, 46852), (442, 45156), (568, 35139), (636, 31382), (663, 30104), (689, 28968), (852, 23426), (884, 22578), (901, 22152), (923, 21624), (1207, 16536), (1272, 15691), (1326, 15052), (1378, 14484), (1704, 11713), (1768, 11289), (1802, 11076), (1846, 10812), (2067, 9656), (2414, 8268), (2652, 7526), (2703, 7384), (2756, 7242), (2769, 7208), (3604, 5538), (3621, 5512), (3692, 5406), (3763, 5304), (4134, 4828)]