18725960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 47832120

約数和(自身を除く): 29106160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 73, 88, 106, 110, 121, 146, 212, 220, 242, 265, 292, 365, 424, 440, 484, 530, 583, 584, 605, 730, 803, 968, 1060, 1166, 1210, 1460, 1606, 2120, 2332, 2420, 2915, 2920, 3212, 3869, 4015, 4664, 4840, 5830, 6413, 6424, 7738, 8030, 8833, 11660, 12826, 15476, 16060, 17666, 19345, 23320, 25652, 30952, 32065, 32120, 35332, 38690, 42559, 44165, 51304, 64130, 70664, 77380, 85118, 88330, 128260, 154760, 170236, 176660, 212795, 256520, 340472, 353320, 425590, 468149, 851180, 936298, 1702360, 1872596, 2340745, 3745192, 4681490, 9362980, 18725960]

約数ペア:

[(1, 18725960), (2, 9362980), (4, 4681490), (5, 3745192), (8, 2340745), (10, 1872596), (11, 1702360), (20, 936298), (22, 851180), (40, 468149), (44, 425590), (53, 353320), (55, 340472), (73, 256520), (88, 212795), (106, 176660), (110, 170236), (121, 154760), (146, 128260), (212, 88330), (220, 85118), (242, 77380), (265, 70664), (292, 64130), (365, 51304), (424, 44165), (440, 42559), (484, 38690), (530, 35332), (583, 32120), (584, 32065), (605, 30952), (730, 25652), (803, 23320), (968, 19345), (1060, 17666), (1166, 16060), (1210, 15476), (1460, 12826), (1606, 11660), (2120, 8833), (2332, 8030), (2420, 7738), (2915, 6424), (2920, 6413), (3212, 5830), (3869, 4840), (4015, 4664)]