201327380

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{661}}^1$

素因数の和:924

約数の個数: 48

約数和(自身を含む): 430517136

約数和(自身を除く): 229189756

約数列:

[1, 2, 4, 5, 10, 20, 97, 157, 194, 314, 388, 485, 628, 661, 785, 970, 1322, 1570, 1940, 2644, 3140, 3305, 6610, 13220, 15229, 30458, 60916, 64117, 76145, 103777, 128234, 152290, 207554, 256468, 304580, 320585, 415108, 518885, 641170, 1037770, 1282340, 2075540, 10066369, 20132738, 40265476, 50331845, 100663690, 201327380]

約数ペア:

[(1, 201327380), (2, 100663690), (4, 50331845), (5, 40265476), (10, 20132738), (20, 10066369), (97, 2075540), (157, 1282340), (194, 1037770), (314, 641170), (388, 518885), (485, 415108), (628, 320585), (661, 304580), (785, 256468), (970, 207554), (1322, 152290), (1570, 128234), (1940, 103777), (2644, 76145), (3140, 64117), (3305, 60916), (6610, 30458), (13220, 15229)]