16951420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1439}}^1$

素因数の和:1498

約数の個数: 48

約数和(自身を含む): 38707200

約数和(自身を除く): 21755780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 1439, 2356, 2878, 2945, 5756, 5890, 7195, 11780, 14390, 27341, 28780, 44609, 54682, 89218, 109364, 136705, 178436, 223045, 273410, 446090, 546820, 847571, 892180, 1695142, 3390284, 4237855, 8475710, 16951420]

約数ペア:

[(1, 16951420), (2, 8475710), (4, 4237855), (5, 3390284), (10, 1695142), (19, 892180), (20, 847571), (31, 546820), (38, 446090), (62, 273410), (76, 223045), (95, 178436), (124, 136705), (155, 109364), (190, 89218), (310, 54682), (380, 44609), (589, 28780), (620, 27341), (1178, 14390), (1439, 11780), (2356, 7195), (2878, 5890), (2945, 5756)]