20379978

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 48211200

約数和(自身を除く): 27831222

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 61, 69, 122, 138, 183, 207, 269, 366, 414, 538, 549, 621, 807, 1098, 1242, 1403, 1614, 1647, 2421, 2806, 3294, 4209, 4842, 6187, 7263, 8418, 12374, 12627, 14526, 16409, 18561, 25254, 32818, 37122, 37881, 49227, 55683, 75762, 98454, 111366, 147681, 167049, 295362, 334098, 377407, 443043, 754814, 886086, 1132221, 2264442, 3396663, 6793326, 10189989, 20379978]

約数ペア:

[(1, 20379978), (2, 10189989), (3, 6793326), (6, 3396663), (9, 2264442), (18, 1132221), (23, 886086), (27, 754814), (46, 443043), (54, 377407), (61, 334098), (69, 295362), (122, 167049), (138, 147681), (183, 111366), (207, 98454), (269, 75762), (366, 55683), (414, 49227), (538, 37881), (549, 37122), (621, 32818), (807, 25254), (1098, 18561), (1242, 16409), (1403, 14526), (1614, 12627), (1647, 12374), (2421, 8418), (2806, 7263), (3294, 6187), (4209, 4842)]