20205856

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{419}}^1$

素因数の和:577

約数の個数: 48

約数和(自身を含む): 43817760

約数和(自身を除く): 23611904

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 137, 176, 274, 352, 419, 548, 838, 1096, 1507, 1676, 2192, 3014, 3352, 4384, 4609, 6028, 6704, 9218, 12056, 13408, 18436, 24112, 36872, 48224, 57403, 73744, 114806, 147488, 229612, 459224, 631433, 918448, 1262866, 1836896, 2525732, 5051464, 10102928, 20205856]

約数ペア:

[(1, 20205856), (2, 10102928), (4, 5051464), (8, 2525732), (11, 1836896), (16, 1262866), (22, 918448), (32, 631433), (44, 459224), (88, 229612), (137, 147488), (176, 114806), (274, 73744), (352, 57403), (419, 48224), (548, 36872), (838, 24112), (1096, 18436), (1507, 13408), (1676, 12056), (2192, 9218), (3014, 6704), (3352, 6028), (4384, 4609)]