158911100

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 355185600

約数和(自身を除く): 196274500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 109, 122, 218, 239, 244, 305, 436, 478, 545, 610, 956, 1090, 1195, 1220, 1525, 2180, 2390, 2725, 3050, 4780, 5450, 5975, 6100, 6649, 10900, 11950, 13298, 14579, 23900, 26051, 26596, 29158, 33245, 52102, 58316, 66490, 72895, 104204, 130255, 132980, 145790, 166225, 260510, 291580, 332450, 364475, 521020, 651275, 664900, 728950, 1302550, 1457900, 1589111, 2605100, 3178222, 6356444, 7945555, 15891110, 31782220, 39727775, 79455550, 158911100]

約数ペア:

[(1, 158911100), (2, 79455550), (4, 39727775), (5, 31782220), (10, 15891110), (20, 7945555), (25, 6356444), (50, 3178222), (61, 2605100), (100, 1589111), (109, 1457900), (122, 1302550), (218, 728950), (239, 664900), (244, 651275), (305, 521020), (436, 364475), (478, 332450), (545, 291580), (610, 260510), (956, 166225), (1090, 145790), (1195, 132980), (1220, 130255), (1525, 104204), (2180, 72895), (2390, 66490), (2725, 58316), (3050, 52102), (4780, 33245), (5450, 29158), (5975, 26596), (6100, 26051), (6649, 23900), (10900, 14579), (11950, 13298)]