19400500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1$

素因数の和:290

約数の個数: 96

約数和(自身を含む): 50738688

約数和(自身を除く): 31338188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 125, 140, 161, 175, 230, 241, 250, 322, 350, 460, 482, 500, 575, 644, 700, 805, 875, 964, 1150, 1205, 1610, 1687, 1750, 2300, 2410, 2875, 3220, 3374, 3500, 4025, 4820, 5543, 5750, 6025, 6748, 8050, 8435, 11086, 11500, 12050, 16100, 16870, 20125, 22172, 24100, 27715, 30125, 33740, 38801, 40250, 42175, 55430, 60250, 77602, 80500, 84350, 110860, 120500, 138575, 155204, 168700, 194005, 210875, 277150, 388010, 421750, 554300, 692875, 776020, 843500, 970025, 1385750, 1940050, 2771500, 3880100, 4850125, 9700250, 19400500]

約数ペア:

[(1, 19400500), (2, 9700250), (4, 4850125), (5, 3880100), (7, 2771500), (10, 1940050), (14, 1385750), (20, 970025), (23, 843500), (25, 776020), (28, 692875), (35, 554300), (46, 421750), (50, 388010), (70, 277150), (92, 210875), (100, 194005), (115, 168700), (125, 155204), (140, 138575), (161, 120500), (175, 110860), (230, 84350), (241, 80500), (250, 77602), (322, 60250), (350, 55430), (460, 42175), (482, 40250), (500, 38801), (575, 33740), (644, 30125), (700, 27715), (805, 24100), (875, 22172), (964, 20125), (1150, 16870), (1205, 16100), (1610, 12050), (1687, 11500), (1750, 11086), (2300, 8435), (2410, 8050), (2875, 6748), (3220, 6025), (3374, 5750), (3500, 5543), (4025, 4820)]