18623340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{659}}^1$

素因数の和:831

約数の個数: 72

約数和(自身を含む): 56936880

約数和(自身を除く): 38313540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 659, 785, 942, 1318, 1413, 1570, 1884, 1977, 2355, 2636, 2826, 3140, 3295, 3954, 4710, 5652, 5931, 6590, 7065, 7908, 9420, 9885, 11862, 13180, 14130, 19770, 23724, 28260, 29655, 39540, 59310, 103463, 118620, 206926, 310389, 413852, 517315, 620778, 931167, 1034630, 1241556, 1551945, 1862334, 2069260, 3103890, 3724668, 4655835, 6207780, 9311670, 18623340]

約数ペア:

[(1, 18623340), (2, 9311670), (3, 6207780), (4, 4655835), (5, 3724668), (6, 3103890), (9, 2069260), (10, 1862334), (12, 1551945), (15, 1241556), (18, 1034630), (20, 931167), (30, 620778), (36, 517315), (45, 413852), (60, 310389), (90, 206926), (157, 118620), (180, 103463), (314, 59310), (471, 39540), (628, 29655), (659, 28260), (785, 23724), (942, 19770), (1318, 14130), (1413, 13180), (1570, 11862), (1884, 9885), (1977, 9420), (2355, 7908), (2636, 7065), (2826, 6590), (3140, 5931), (3295, 5652), (3954, 4710)]