28656100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:373

約数の個数: 72

約数和(自身を含む): 68745600

約数和(自身を除く): 40089500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 109, 110, 218, 220, 239, 275, 436, 478, 545, 550, 956, 1090, 1100, 1195, 1199, 2180, 2390, 2398, 2629, 2725, 4780, 4796, 5258, 5450, 5975, 5995, 10516, 10900, 11950, 11990, 13145, 23900, 23980, 26051, 26290, 29975, 52102, 52580, 59950, 65725, 104204, 119900, 130255, 131450, 260510, 262900, 286561, 521020, 573122, 651275, 1146244, 1302550, 1432805, 2605100, 2865610, 5731220, 7164025, 14328050, 28656100]

約数ペア:

[(1, 28656100), (2, 14328050), (4, 7164025), (5, 5731220), (10, 2865610), (11, 2605100), (20, 1432805), (22, 1302550), (25, 1146244), (44, 651275), (50, 573122), (55, 521020), (100, 286561), (109, 262900), (110, 260510), (218, 131450), (220, 130255), (239, 119900), (275, 104204), (436, 65725), (478, 59950), (545, 52580), (550, 52102), (956, 29975), (1090, 26290), (1100, 26051), (1195, 23980), (1199, 23900), (2180, 13145), (2390, 11990), (2398, 11950), (2629, 10900), (2725, 10516), (4780, 5995), (4796, 5975), (5258, 5450)]