221423900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{36299}}^1$

素因数の和:36374

約数の個数: 36

約数和(自身を含む): 488380200

約数和(自身を除く): 266956300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 6100, 36299, 72598, 145196, 181495, 362990, 725980, 907475, 1814950, 2214239, 3629900, 4428478, 8856956, 11071195, 22142390, 44284780, 55355975, 110711950, 221423900]

約数ペア:

[(1, 221423900), (2, 110711950), (4, 55355975), (5, 44284780), (10, 22142390), (20, 11071195), (25, 8856956), (50, 4428478), (61, 3629900), (100, 2214239), (122, 1814950), (244, 907475), (305, 725980), (610, 362990), (1220, 181495), (1525, 145196), (3050, 72598), (6100, 36299)]