407221520

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^2\times {\mathrm{541}}^1$

素因数の和:748

約数の個数: 60

約数和(自身を含む): 958419684

約数和(自身を除く): 551198164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 541, 776, 970, 1082, 1552, 1940, 2164, 2705, 3880, 4328, 5410, 7760, 8656, 9409, 10820, 18818, 21640, 37636, 43280, 47045, 52477, 75272, 94090, 104954, 150544, 188180, 209908, 262385, 376360, 419816, 524770, 752720, 839632, 1049540, 2099080, 4198160, 5090269, 10180538, 20361076, 25451345, 40722152, 50902690, 81444304, 101805380, 203610760, 407221520]

約数ペア:

[(1, 407221520), (2, 203610760), (4, 101805380), (5, 81444304), (8, 50902690), (10, 40722152), (16, 25451345), (20, 20361076), (40, 10180538), (80, 5090269), (97, 4198160), (194, 2099080), (388, 1049540), (485, 839632), (541, 752720), (776, 524770), (970, 419816), (1082, 376360), (1552, 262385), (1940, 209908), (2164, 188180), (2705, 150544), (3880, 104954), (4328, 94090), (5410, 75272), (7760, 52477), (8656, 47045), (9409, 43280), (10820, 37636), (18818, 21640)]